Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (9): 20250147.doi: 10.7503/cjcu20250147
• Organic Chemistry • Previous Articles Next Articles
					
													CHEN Yangmi, SHE Huixian, WANG Qing, YANG Jiaqiang(
)
												  
						
						
						
					
				
Received:2025-05-20
															
							
															
							
															
							
																											Online:2025-09-10
																								
							
																	Published:2025-06-24
															
						Contact:
								YANG Jiaqiang   
																	E-mail:yjqcn@126.com
																					Supported by:CLC Number:
TrendMD:
CHEN Yangmi, SHE Huixian, WANG Qing, YANG Jiaqiang. Synthesis and Antibacterial Activities of Osthole Oxime Ether Derivatives[J]. Chem. J. Chinese Universities, 2025, 46(9): 20250147.
| Compd. | Appearance | Yield(%) | m. p./℃ | Elemental analysis(%) Calcd.(Found) | ||
|---|---|---|---|---|---|---|
| C | H | N | ||||
| 5a | White solid | 60 | 109—110 | 59.15(59.32) | 5.20(5.06) | 13.14(12.97) | 
| 5b | White solid | 59 | 122—124 | 59.15(58.91) | 5.20(5.34) | 13.14(13.22) | 
| 5c | White solid | 63 | 122—123 | 59.99(60.18) | 5.49(5.63) | 12.72(12.55) | 
| 5d | White solid | 58 | 95—96 | 59.99(60.06) | 5.49(5.27) | 12.72(12.80) | 
| 5e | White solid | 45 | 145—146 | 49.91(49.70) | 4.19(4.36) | 11.09(11.03) | 
| 5f | White solid | 40 | 115—116 | 54.73(54.85) | 4.59(4.78) | 12.16(12.39) | 
| 5g | White solid | 43 | 115—116 | 50.88(51.13) | 4.46(4.48) | 10.79(10.85) | 
| 5h | White solid | 36 | 132—133 | 63.02(62.89) | 5.08(4.95) | 11.76(11.96) | 
| 5i | White solid | 50 | 133—135 | 56.20(56.49) | 4.95(5.07) | 16.39(16.13) | 
| Compd. | Appearance | Yield(%) | m. p./℃ | Elemental analysis(%) Calcd.(Found) | ||
| C | H | N | ||||
| 5j | White solid | 63 | 108—109 | 59.99(59.76) | 5.49(5.32) | 12.72(12.52) | 
| 5k | White solid | 61 | 115—116 | 59.99(60.24) | 5.49(5.45) | 12.72(12.67) | 
| 5l | White solid | 68 | 132—134 | 60.78(60.63) | 5.77(5.70) | 12.33(12.07) | 
| 5m | White solid | 60 | 97—98 | 60.78(61.07) | 5.77(5.94) | 12.33(12.15) | 
| 5n | White solid | 48 | 139—140 | 50.88(50.80) | 4.46(4.29) | 10.79(11.03) | 
| 5o | White solid | 44 | 105—106 | 55.64(55.84) | 4.88(5.11) | 11.80(11.98) | 
| 5p | White solid | 42 | 147—148 | 51.79(52.02) | 4.72(4.66) | 10.50(10.67) | 
| 5q | White solid | 40 | 119—120 | 63.66(63.43) | 5.34(5.57) | 11.42(11.36) | 
| 5r | White solid | 50 | 133—135 | 57.14(57.39) | 5.25(5.52) | 15.86(16.12) | 
Table 1 Physical properties of compounds 5a—5r
| Compd. | Appearance | Yield(%) | m. p./℃ | Elemental analysis(%) Calcd.(Found) | ||
|---|---|---|---|---|---|---|
| C | H | N | ||||
| 5a | White solid | 60 | 109—110 | 59.15(59.32) | 5.20(5.06) | 13.14(12.97) | 
| 5b | White solid | 59 | 122—124 | 59.15(58.91) | 5.20(5.34) | 13.14(13.22) | 
| 5c | White solid | 63 | 122—123 | 59.99(60.18) | 5.49(5.63) | 12.72(12.55) | 
| 5d | White solid | 58 | 95—96 | 59.99(60.06) | 5.49(5.27) | 12.72(12.80) | 
| 5e | White solid | 45 | 145—146 | 49.91(49.70) | 4.19(4.36) | 11.09(11.03) | 
| 5f | White solid | 40 | 115—116 | 54.73(54.85) | 4.59(4.78) | 12.16(12.39) | 
| 5g | White solid | 43 | 115—116 | 50.88(51.13) | 4.46(4.48) | 10.79(10.85) | 
| 5h | White solid | 36 | 132—133 | 63.02(62.89) | 5.08(4.95) | 11.76(11.96) | 
| 5i | White solid | 50 | 133—135 | 56.20(56.49) | 4.95(5.07) | 16.39(16.13) | 
| Compd. | Appearance | Yield(%) | m. p./℃ | Elemental analysis(%) Calcd.(Found) | ||
| C | H | N | ||||
| 5j | White solid | 63 | 108—109 | 59.99(59.76) | 5.49(5.32) | 12.72(12.52) | 
| 5k | White solid | 61 | 115—116 | 59.99(60.24) | 5.49(5.45) | 12.72(12.67) | 
| 5l | White solid | 68 | 132—134 | 60.78(60.63) | 5.77(5.70) | 12.33(12.07) | 
| 5m | White solid | 60 | 97—98 | 60.78(61.07) | 5.77(5.94) | 12.33(12.15) | 
| 5n | White solid | 48 | 139—140 | 50.88(50.80) | 4.46(4.29) | 10.79(11.03) | 
| 5o | White solid | 44 | 105—106 | 55.64(55.84) | 4.88(5.11) | 11.80(11.98) | 
| 5p | White solid | 42 | 147—148 | 51.79(52.02) | 4.72(4.66) | 10.50(10.67) | 
| 5q | White solid | 40 | 119—120 | 63.66(63.43) | 5.34(5.57) | 11.42(11.36) | 
| 5r | White solid | 50 | 133—135 | 57.14(57.39) | 5.25(5.52) | 15.86(16.12) | 
| Compd. | 1H NMR, δ(400 MHz, CDCl3) | 13C NMR, δ(101 MHz, CDCl3) | 
|---|---|---|
| 5a* | 8.40(s, 1H), 7.95(d, J=9.6 Hz, 1H), 7.82(s, 1H), 7.67(s, 1H), 7.57(d, J=8.9 Hz, 1H), 7.05(d, J=8.9 Hz, 1H), 6.26(d, J=9.6 Hz, 1H), 5.75(t, J=7.6 Hz, 1H), 4.10(t, J=7.0 Hz, 2H), 3.94(t, J=6.1 Hz, 2H), 3.87(s, 3H), 3.57(d, J=7.4 Hz, 2H), 2.18—2.00(m, 2H), 1.90(s, 3H) | 160.61, 160.18, 153.74, 152.67, 147.35, 145.12, 137.91, 135.88, 131.15, 128.15, 122.06, 114.60, 113.12, 112.79, 108.49, 70.32, 56.80, 45.14, 29.93, 22.03, 11.77 | 
| 5b | 7.62(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.33(d, J=8.6 Hz, 1H), 7.12(s, 1H), 7.09(s, 1H), 6.84(d, J=8.6 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.75(t, J=7.5 Hz, 1H), 4.51(t, J=6.7 Hz, 2H), 4.03(t, J=5.6 Hz, 2H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.17—2.00(m, 2H), 1.99(s, 3H) | 161.11, 160.17, 153.93, 152.82, 143.79, 135.84, 131.18, 128.22, 126.95, 126.61, 115.55, 113.05, 112.96, 107.36, 69.34, 56.12, 47.30, 29.83, 22.02, 11.60 | 
| 5c | 7.62(d, J=9.5 Hz, 1H), 7.58(s, 1H), 7.36(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.09—3.99(m, 4H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.58(s, 3H), 2.13—2.02(m, 2H), 1.98(s, 3H) | 161.14, 160.17, 154.13, 152.82, 144.77, 143.83, 136.14, 134.66, 131.07, 130.34, 126.99, 115.44, 113.10, 112.95, 107.38, 69.05, 56.13, 42.60, 29.68, 22.03, 11.57, 10.24 | 
| 5d | 7.70(s, 1H), 7.62(d, J=9.5 Hz, 1H), 7.58(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J = 8.6 Hz, 1H), 6.22(d, J=9.4 Hz, 1H), 5.76(t, J=8.4 Hz, 1H), 4.06—3.98(m, 4H), 3.91(s, 3H), 3.71(d, J=7.6 Hz, 2H), 2.39(s, 3H), 2.15—2.06(m, 2H), 2.00(s, 3H) | 161.11, 160.17, 154.12, 152.83, 146.38, 144.84, 143.79, 136.13, 131.09, 126.97, 119.77, 115.47, 113.12, 112.96, 107.36, 68.99, 56.12, 43.94, 29.76, 22.03, 13.01, 11.57 | 
| 5e | 7.85(s, 1H), 7.63(d, J=9.5 Hz, 1H), 7.59(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.23(d, J=9.5 Hz, 1H), 5.76(t, J=7.5 Hz, 1H), 4.13(t, J=6.9 Hz, 2H), 4.06(t, J=5.6 Hz, 2H), 3.92(s, 3H), 3.72(d, J=7.6 Hz, 2H), 2.19—2.11(m, 2H), 2.01(s, 3H) | 161.12, 160.18, 154.21, 152.84, 143.78, 136.20, 131.08, 126.96, 121.89, 120.25, 115.47, 113.15, 112.97, 107.36, 69.02, 56.13, 46.23, 29.40, 22.04, 11.60 | 
| 5f | 7.80(s, 1H), 7.62(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.23(d, J=9.4 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.13(t, J=6.8 Hz, 2H), 4.06(t, J=5.6 Hz, 2H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.19—2.12(m, 2H), 2.00(s, 3H) | 161.12, 160.19, 154.19, 152.82, 143.80, 136.21, 132.42, 131.05, 126.98, 121.04, 115.45, 113.12, 112.96, 107.37, 69.06, 56.13, 45.14, 29.24, 22.04, 11.58 | 
| 5g | 7.57(d, J=9.4 Hz, 1H), 7.49(s, 1H), 7.28(d, J=8.6 Hz, 1H), 6.79(d, J=8.6 Hz, 1H), 6.18(d, J=9.4 Hz, 1H), 5.70(t, J=7.5 Hz, 1H)), 4.35(t, J=7.0 Hz, 2H), 3.98(t, J=5.4 Hz, 2H), 3.86(s, 3H), 3.67(d, J=7.5 Hz, 2H), 2.38(s, 3H), 2.12—2.03(m, 2H), 1.93(s, 3H) | 160.06, 159.18, 152.99, 151.85, 148.06, 142.72, 134.98, 130.13, 125.90, 119.66, 114.56, 112.09, 111.96, 106.32, 68.75, 55.10, 44.02, 28.34, 21.02, 13.04, 10.52 | 
| 5h | 8.66(s, 1H), 8.18(d, J=9.0 Hz, 1H), 8.10(s, 1H), 7.62(d, J=9.4 Hz, 1H), 7.60(s, 1H), 7.45(d, J=8.9 Hz, 1H), 7.33(d, J=8.6 Hz, 1H), 6.85(d, J=8.6 Hz, 1H), 6.22(d, J=9.4 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.34(t, J=6.8 Hz, 2H), 4.02(t, J=5.6 Hz, 2H), 3.92(s, 3H), 3.71(d, J=7.6 Hz, 2H), 2.26—2.18(m, 2H), 1.99(s, 3H) | 161.12, 160.16, 154.05, 152.83, 146.79, 143.80, 143.57, 143.05, 137.96, 136.03, 131.14, 126.98, 118.68, 117.07, 115.49, 113.15, 112.96, 109.73, 107.38, 69.36, 56.14, 42.26, 29.38, 22.03, 11.59 | 
| 5i* | 8.81(s, 1H), 7.94(d, J=9.5 Hz, 1H), 7.64(s, 1H), 7.56(d, J=8.5 Hz, 1H), 7.04(d, J=8.5 Hz, 1H), 6.25(d, J=9.4 Hz, 1H), 5.74(t, J=7.6 Hz, 1H), 4.35(t, J=6.9 Hz, 2H), 4.00(t, J=6.0 Hz, 2H), 3.88 (s, 3H), 3.56(d, J=7.5 Hz, 2H), 2.19—2.10(m, 2H), 1.89(s, 3H) | 162.40, 160.58, 160.16, 153.69, 152.66, 147.17, 145.07, 135.90, 131.11, 128.12, 114.58, 113.12, 112.78, 108.45, 70.35, 56.79, 48.32, 28.89, 22.02, 11.73 | 
| Compd. | 1H NMR, δ(400 MHz, CDCl3) | 13C NMR, δ(101 MHz, CDCl3) | 
| 5j | 7.76(s, 1H), 7.61(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.42(s, 1H), 7.32(d, J=8.6 Hz, 1H), 6.82(d, J=8.6 Hz, 1H), 6.20(d, J=9.6 Hz, 1H), 5.72(t, J=7.6 Hz, 1H), 4.09—4.00(m, 4H), 3.89(s, 3H), 3.69(d, J=7.5 Hz, 2H), 1.98(s, 3H), 1.95—1.88(m, 2H), 1.71—1.62(m, 2H) | 160.13, 159.19, 152.62, 151.81, 147.02, 142.83, 134.96, 134.56, 130.25, 125.96, 118.20, 114.56, 111.98, 111.95, 106.39, 71.50, 55.12, 47.14, 26.67, 24.74, 21.00, 10.57 | 
| 5k | 7.60(s, 1H), 7.57(s, 1H), 7.32(d, J=8.6 Hz, 1H), 7.10(s, 2H), 6.83(d, J=8.6 Hz, 1H), 6.21(d, J=9.5 Hz, 1H), 5.71(t, J=7.6 Hz, 1H), 4.41(t, J=7.4 Hz, 2H), 4.05(t, J=6.1 Hz, 2H), 3.89(s, 3H), 3.70(d, J=7.6 Hz, 2H), 1.99(s, 3H), 1.94—1.87(m, 2H), 1.78—1.62(m, 2H) | 161.15, 160.22, 153.54, 152.84, 143.82, 135.37, 131.36, 128.33, 126.95, 125.98, 115.67, 113.01, 107.39, 72.71, 56.13, 50.10, 27.40, 25.85, 22.02, 11.61 | 
| 5l | 7.60(d, J=9.5 Hz, 1H), 7.56(s, 1H), 7.44(s, 1H), 7.30(d, J=8.9 Hz, 1H), 6.82(d, J=8.7 Hz, 1H), 6.21(d, J=9.4 Hz, 1H), 5.70(t, J=7.7 Hz, 1H), 4.31(t, J=7.3 Hz, 2H), 4.03(t, J=6.2 Hz, 2H), 3.89(s, 3H), 3.69(d, J=7.5 Hz, 2H), 2.56(s, 3H), 1.98(s, 3H), 1.90—1.80(m, 2H), 1.67—1.59(m, 2H) | 161.10, 160.22, 153.50, 152.83, 148.16, 145.72, 143.76, 139.28, 135.31, 131.37, 126.91, 115.69, 113.07, 112.98, 107.36, 72.74, 56.12, 48.56, 27.42, 25.78, 22.02, 16.37, 11.61 | 
| 5m* | 8.34(s, 1H), 7.99(d, J=9.5 Hz, 1H), 7.74(s, 1H), 7.61(d, J=8.7 Hz, 1H), 7.09(d, J=8.7 Hz, 1H), 6.30(d, J=9.5 Hz, 1H), 5.78(t, J=7.5 Hz, 1H), 4.05—3.98(m, 4H), 3.92(s, 3H), 3.61(d, J=7.4 Hz, 2H), 2.36(s, 3H), 1.95(s, 3H), 1.82—1.72(m, 2H), 1.64—1.56(m, 2H) | 160.20, 153.35, 152.71, 145.76, 145.30, 145.08, 135.59, 131.25, 128.12, 122.50, 113.15, 11.78, 160.59, 114.71, 112.81, 108.48, 72.84, 56.81, 46.57, 26.59, 22.04, 25.88, 13.01 | 
| 5n* | 8.59(s, 1H), 7.97(d, J=9.4 Hz, 1H), 7.72(s, 1H), 7.58(d, J=8.6 Hz, 1H), 7.07(d, J=8.6 Hz, 1H), 6.28(d, J=9.6 Hz, 1H), 5.76(t, J=7.4 Hz, 1H), 4.05(t, J=7.1 Hz, 2H), 4.00(t, J=6.2 Hz, 2H), 3.90(s, 3H), 3.59(d, J=7.3 Hz, 2H), 1.92(s, 3H), 1.86—1.75(m, 2H), 1.63—1.53(m, 2H) | 160.59, 160.20, 153.38, 152.70, 146.70, 145.08, 135.61, 131.25, 128.12, 124.71, 120.94, 114.71, 113.14, 112.80, 108.48, 72.74, 56.81, 48.66, 26.43, 25.75, 22.04, 11.78 | 
| 5o* | 8.54(s, 1H), 7.92(t, J=7.1 Hz, 1H), 7.67(s, 1H), 7.53(t, J=7.2 Hz, 1H), 7.01(t, J=7.4 Hz, 1H), 6.23(d, J=9.5 Hz, 1H), 5.72(t, J=7.3 Hz, 1H), 4.02(t, J=7.2 Hz, 2H), 3.95(t, J=6.3 Hz, 2H), 3.86(s, J=2.1 Hz, 3H), 3.54(d, J=7.4 Hz, 2H), 1.88(s, 3H), 1.81—1.71(m, 2H), 1.60—1.50(m, 2H) | 160.59, 160.20, 153.36, 152.70, 145.06, 135.60, 131.94, 131.24, 128.10, 124.04, 114.71, 113.14, 112.79, 108.46, 72.73, 56.79, 47.68, 26.22, 25.74, 22.03, 11.75 | 
| 5p* | 7.97(d, J=9.6 Hz, 1H), 7.71(s, 1H), 7.59(d, J=8.6 Hz, 1H), 7.07(d, J=8.6 Hz, 1H), 6.28(d, J=9.5 Hz, 1H), 5.76(t, J=7.7 Hz, 1H), 4.26(t, J=7.5 Hz, 2H), 3.99(t, J=4.9 Hz, 2H), 3.90(s, 3H), 3.60(d, J=7.4 Hz, 2H), 2.42(s, 3H), 1.93(s, 3H), 1.79—1.67(m, 2H), 1.65—1.57(m, 2H) | 160.63, 160.22, 153.37, 152.69, 150.10, 145.12, 135.59, 135.15, 131.26, 128.15, 120.43, 114.72, 113.14, 112.81, 108.52, 72.84, 56.83, 47.26, 26.31, 25.89, 22.05, 14.06, 11.81 | 
| 5q | 8.68(d, J=2.4 Hz, 1H), 8.19(d, J=8.8 Hz, 1H), 8.07(s, 1H), 7.61(d, 1H), 7.57(s, 1H), 7.44(d, J=9.0 Hz, 1H), 7.32(d, J=8.4 Hz, 1H), 6.83(d, J=8.5 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.72(t, J=7.5 Hz, 1H), 4.26(t, J=7.2 Hz, 2H), 4.07(t, J=6.0 Hz, 2H), 3.90(s, 3H), 3.71(d, J=7.6 Hz, 2H), 1.99(s, 3H), 1.98—1.95(m, 2H),1.77—1.70 (m, 2H) | 161.09, 160.20, 153.60, 152.90, 148.26, 146.31, 143.73, 143.16, 137.90, 135.51, 131.34, 126.92, 118.72, 117.19, 115.70, 113.13, 113.01, 109.72, 107.38, 72.63, 56.13, 45.39, 26.77, 26.17, 22.04, 11.61 | 
| 5r* | 8.88(s, 1H), 7.98(d, J=9.5 Hz, 1H), 7.74(s, 1H), 7.60(d, J=8.6 Hz, 1H), 7.09(d, J=8.7 Hz, 1H), 6.30(d, J=9.5 Hz, 1H), 5.78(t, J=7.6 Hz, 1H), 4.36(t, J=7.0 Hz, 2H), 4.03(t, J=6.3 Hz, 2H), 3.93 (s, 3H), 3.61(d, J=7.5 Hz, 2H), 1.95(s, 3H), 1.94—1.86(m, 2H), 1.65—1.56(m, 2H) | 162.49, 160.61, 160.19, 153.34, 152.68, 147.03, 145.06, 135.58, 131.24, 128.10, 114.69, 113.12, 112.77, 108.44, 72.69, 56.78, 50.65, 26.03, 25.75, 22.02, 11.74 | 
Table 2 1H NMR and 13C NMR data of compounds 5a—5r
| Compd. | 1H NMR, δ(400 MHz, CDCl3) | 13C NMR, δ(101 MHz, CDCl3) | 
|---|---|---|
| 5a* | 8.40(s, 1H), 7.95(d, J=9.6 Hz, 1H), 7.82(s, 1H), 7.67(s, 1H), 7.57(d, J=8.9 Hz, 1H), 7.05(d, J=8.9 Hz, 1H), 6.26(d, J=9.6 Hz, 1H), 5.75(t, J=7.6 Hz, 1H), 4.10(t, J=7.0 Hz, 2H), 3.94(t, J=6.1 Hz, 2H), 3.87(s, 3H), 3.57(d, J=7.4 Hz, 2H), 2.18—2.00(m, 2H), 1.90(s, 3H) | 160.61, 160.18, 153.74, 152.67, 147.35, 145.12, 137.91, 135.88, 131.15, 128.15, 122.06, 114.60, 113.12, 112.79, 108.49, 70.32, 56.80, 45.14, 29.93, 22.03, 11.77 | 
| 5b | 7.62(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.33(d, J=8.6 Hz, 1H), 7.12(s, 1H), 7.09(s, 1H), 6.84(d, J=8.6 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.75(t, J=7.5 Hz, 1H), 4.51(t, J=6.7 Hz, 2H), 4.03(t, J=5.6 Hz, 2H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.17—2.00(m, 2H), 1.99(s, 3H) | 161.11, 160.17, 153.93, 152.82, 143.79, 135.84, 131.18, 128.22, 126.95, 126.61, 115.55, 113.05, 112.96, 107.36, 69.34, 56.12, 47.30, 29.83, 22.02, 11.60 | 
| 5c | 7.62(d, J=9.5 Hz, 1H), 7.58(s, 1H), 7.36(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.09—3.99(m, 4H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.58(s, 3H), 2.13—2.02(m, 2H), 1.98(s, 3H) | 161.14, 160.17, 154.13, 152.82, 144.77, 143.83, 136.14, 134.66, 131.07, 130.34, 126.99, 115.44, 113.10, 112.95, 107.38, 69.05, 56.13, 42.60, 29.68, 22.03, 11.57, 10.24 | 
| 5d | 7.70(s, 1H), 7.62(d, J=9.5 Hz, 1H), 7.58(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J = 8.6 Hz, 1H), 6.22(d, J=9.4 Hz, 1H), 5.76(t, J=8.4 Hz, 1H), 4.06—3.98(m, 4H), 3.91(s, 3H), 3.71(d, J=7.6 Hz, 2H), 2.39(s, 3H), 2.15—2.06(m, 2H), 2.00(s, 3H) | 161.11, 160.17, 154.12, 152.83, 146.38, 144.84, 143.79, 136.13, 131.09, 126.97, 119.77, 115.47, 113.12, 112.96, 107.36, 68.99, 56.12, 43.94, 29.76, 22.03, 13.01, 11.57 | 
| 5e | 7.85(s, 1H), 7.63(d, J=9.5 Hz, 1H), 7.59(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.23(d, J=9.5 Hz, 1H), 5.76(t, J=7.5 Hz, 1H), 4.13(t, J=6.9 Hz, 2H), 4.06(t, J=5.6 Hz, 2H), 3.92(s, 3H), 3.72(d, J=7.6 Hz, 2H), 2.19—2.11(m, 2H), 2.01(s, 3H) | 161.12, 160.18, 154.21, 152.84, 143.78, 136.20, 131.08, 126.96, 121.89, 120.25, 115.47, 113.15, 112.97, 107.36, 69.02, 56.13, 46.23, 29.40, 22.04, 11.60 | 
| 5f | 7.80(s, 1H), 7.62(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.33(d, J=8.6 Hz, 1H), 6.84(d, J=8.6 Hz, 1H), 6.23(d, J=9.4 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.13(t, J=6.8 Hz, 2H), 4.06(t, J=5.6 Hz, 2H), 3.91(s, 3H), 3.71(d, J=7.5 Hz, 2H), 2.19—2.12(m, 2H), 2.00(s, 3H) | 161.12, 160.19, 154.19, 152.82, 143.80, 136.21, 132.42, 131.05, 126.98, 121.04, 115.45, 113.12, 112.96, 107.37, 69.06, 56.13, 45.14, 29.24, 22.04, 11.58 | 
| 5g | 7.57(d, J=9.4 Hz, 1H), 7.49(s, 1H), 7.28(d, J=8.6 Hz, 1H), 6.79(d, J=8.6 Hz, 1H), 6.18(d, J=9.4 Hz, 1H), 5.70(t, J=7.5 Hz, 1H)), 4.35(t, J=7.0 Hz, 2H), 3.98(t, J=5.4 Hz, 2H), 3.86(s, 3H), 3.67(d, J=7.5 Hz, 2H), 2.38(s, 3H), 2.12—2.03(m, 2H), 1.93(s, 3H) | 160.06, 159.18, 152.99, 151.85, 148.06, 142.72, 134.98, 130.13, 125.90, 119.66, 114.56, 112.09, 111.96, 106.32, 68.75, 55.10, 44.02, 28.34, 21.02, 13.04, 10.52 | 
| 5h | 8.66(s, 1H), 8.18(d, J=9.0 Hz, 1H), 8.10(s, 1H), 7.62(d, J=9.4 Hz, 1H), 7.60(s, 1H), 7.45(d, J=8.9 Hz, 1H), 7.33(d, J=8.6 Hz, 1H), 6.85(d, J=8.6 Hz, 1H), 6.22(d, J=9.4 Hz, 1H), 5.76(t, J=7.6 Hz, 1H), 4.34(t, J=6.8 Hz, 2H), 4.02(t, J=5.6 Hz, 2H), 3.92(s, 3H), 3.71(d, J=7.6 Hz, 2H), 2.26—2.18(m, 2H), 1.99(s, 3H) | 161.12, 160.16, 154.05, 152.83, 146.79, 143.80, 143.57, 143.05, 137.96, 136.03, 131.14, 126.98, 118.68, 117.07, 115.49, 113.15, 112.96, 109.73, 107.38, 69.36, 56.14, 42.26, 29.38, 22.03, 11.59 | 
| 5i* | 8.81(s, 1H), 7.94(d, J=9.5 Hz, 1H), 7.64(s, 1H), 7.56(d, J=8.5 Hz, 1H), 7.04(d, J=8.5 Hz, 1H), 6.25(d, J=9.4 Hz, 1H), 5.74(t, J=7.6 Hz, 1H), 4.35(t, J=6.9 Hz, 2H), 4.00(t, J=6.0 Hz, 2H), 3.88 (s, 3H), 3.56(d, J=7.5 Hz, 2H), 2.19—2.10(m, 2H), 1.89(s, 3H) | 162.40, 160.58, 160.16, 153.69, 152.66, 147.17, 145.07, 135.90, 131.11, 128.12, 114.58, 113.12, 112.78, 108.45, 70.35, 56.79, 48.32, 28.89, 22.02, 11.73 | 
| Compd. | 1H NMR, δ(400 MHz, CDCl3) | 13C NMR, δ(101 MHz, CDCl3) | 
| 5j | 7.76(s, 1H), 7.61(d, J=9.5 Hz, 1H), 7.57(s, 1H), 7.42(s, 1H), 7.32(d, J=8.6 Hz, 1H), 6.82(d, J=8.6 Hz, 1H), 6.20(d, J=9.6 Hz, 1H), 5.72(t, J=7.6 Hz, 1H), 4.09—4.00(m, 4H), 3.89(s, 3H), 3.69(d, J=7.5 Hz, 2H), 1.98(s, 3H), 1.95—1.88(m, 2H), 1.71—1.62(m, 2H) | 160.13, 159.19, 152.62, 151.81, 147.02, 142.83, 134.96, 134.56, 130.25, 125.96, 118.20, 114.56, 111.98, 111.95, 106.39, 71.50, 55.12, 47.14, 26.67, 24.74, 21.00, 10.57 | 
| 5k | 7.60(s, 1H), 7.57(s, 1H), 7.32(d, J=8.6 Hz, 1H), 7.10(s, 2H), 6.83(d, J=8.6 Hz, 1H), 6.21(d, J=9.5 Hz, 1H), 5.71(t, J=7.6 Hz, 1H), 4.41(t, J=7.4 Hz, 2H), 4.05(t, J=6.1 Hz, 2H), 3.89(s, 3H), 3.70(d, J=7.6 Hz, 2H), 1.99(s, 3H), 1.94—1.87(m, 2H), 1.78—1.62(m, 2H) | 161.15, 160.22, 153.54, 152.84, 143.82, 135.37, 131.36, 128.33, 126.95, 125.98, 115.67, 113.01, 107.39, 72.71, 56.13, 50.10, 27.40, 25.85, 22.02, 11.61 | 
| 5l | 7.60(d, J=9.5 Hz, 1H), 7.56(s, 1H), 7.44(s, 1H), 7.30(d, J=8.9 Hz, 1H), 6.82(d, J=8.7 Hz, 1H), 6.21(d, J=9.4 Hz, 1H), 5.70(t, J=7.7 Hz, 1H), 4.31(t, J=7.3 Hz, 2H), 4.03(t, J=6.2 Hz, 2H), 3.89(s, 3H), 3.69(d, J=7.5 Hz, 2H), 2.56(s, 3H), 1.98(s, 3H), 1.90—1.80(m, 2H), 1.67—1.59(m, 2H) | 161.10, 160.22, 153.50, 152.83, 148.16, 145.72, 143.76, 139.28, 135.31, 131.37, 126.91, 115.69, 113.07, 112.98, 107.36, 72.74, 56.12, 48.56, 27.42, 25.78, 22.02, 16.37, 11.61 | 
| 5m* | 8.34(s, 1H), 7.99(d, J=9.5 Hz, 1H), 7.74(s, 1H), 7.61(d, J=8.7 Hz, 1H), 7.09(d, J=8.7 Hz, 1H), 6.30(d, J=9.5 Hz, 1H), 5.78(t, J=7.5 Hz, 1H), 4.05—3.98(m, 4H), 3.92(s, 3H), 3.61(d, J=7.4 Hz, 2H), 2.36(s, 3H), 1.95(s, 3H), 1.82—1.72(m, 2H), 1.64—1.56(m, 2H) | 160.20, 153.35, 152.71, 145.76, 145.30, 145.08, 135.59, 131.25, 128.12, 122.50, 113.15, 11.78, 160.59, 114.71, 112.81, 108.48, 72.84, 56.81, 46.57, 26.59, 22.04, 25.88, 13.01 | 
| 5n* | 8.59(s, 1H), 7.97(d, J=9.4 Hz, 1H), 7.72(s, 1H), 7.58(d, J=8.6 Hz, 1H), 7.07(d, J=8.6 Hz, 1H), 6.28(d, J=9.6 Hz, 1H), 5.76(t, J=7.4 Hz, 1H), 4.05(t, J=7.1 Hz, 2H), 4.00(t, J=6.2 Hz, 2H), 3.90(s, 3H), 3.59(d, J=7.3 Hz, 2H), 1.92(s, 3H), 1.86—1.75(m, 2H), 1.63—1.53(m, 2H) | 160.59, 160.20, 153.38, 152.70, 146.70, 145.08, 135.61, 131.25, 128.12, 124.71, 120.94, 114.71, 113.14, 112.80, 108.48, 72.74, 56.81, 48.66, 26.43, 25.75, 22.04, 11.78 | 
| 5o* | 8.54(s, 1H), 7.92(t, J=7.1 Hz, 1H), 7.67(s, 1H), 7.53(t, J=7.2 Hz, 1H), 7.01(t, J=7.4 Hz, 1H), 6.23(d, J=9.5 Hz, 1H), 5.72(t, J=7.3 Hz, 1H), 4.02(t, J=7.2 Hz, 2H), 3.95(t, J=6.3 Hz, 2H), 3.86(s, J=2.1 Hz, 3H), 3.54(d, J=7.4 Hz, 2H), 1.88(s, 3H), 1.81—1.71(m, 2H), 1.60—1.50(m, 2H) | 160.59, 160.20, 153.36, 152.70, 145.06, 135.60, 131.94, 131.24, 128.10, 124.04, 114.71, 113.14, 112.79, 108.46, 72.73, 56.79, 47.68, 26.22, 25.74, 22.03, 11.75 | 
| 5p* | 7.97(d, J=9.6 Hz, 1H), 7.71(s, 1H), 7.59(d, J=8.6 Hz, 1H), 7.07(d, J=8.6 Hz, 1H), 6.28(d, J=9.5 Hz, 1H), 5.76(t, J=7.7 Hz, 1H), 4.26(t, J=7.5 Hz, 2H), 3.99(t, J=4.9 Hz, 2H), 3.90(s, 3H), 3.60(d, J=7.4 Hz, 2H), 2.42(s, 3H), 1.93(s, 3H), 1.79—1.67(m, 2H), 1.65—1.57(m, 2H) | 160.63, 160.22, 153.37, 152.69, 150.10, 145.12, 135.59, 135.15, 131.26, 128.15, 120.43, 114.72, 113.14, 112.81, 108.52, 72.84, 56.83, 47.26, 26.31, 25.89, 22.05, 14.06, 11.81 | 
| 5q | 8.68(d, J=2.4 Hz, 1H), 8.19(d, J=8.8 Hz, 1H), 8.07(s, 1H), 7.61(d, 1H), 7.57(s, 1H), 7.44(d, J=9.0 Hz, 1H), 7.32(d, J=8.4 Hz, 1H), 6.83(d, J=8.5 Hz, 1H), 6.22(d, J=9.5 Hz, 1H), 5.72(t, J=7.5 Hz, 1H), 4.26(t, J=7.2 Hz, 2H), 4.07(t, J=6.0 Hz, 2H), 3.90(s, 3H), 3.71(d, J=7.6 Hz, 2H), 1.99(s, 3H), 1.98—1.95(m, 2H),1.77—1.70 (m, 2H) | 161.09, 160.20, 153.60, 152.90, 148.26, 146.31, 143.73, 143.16, 137.90, 135.51, 131.34, 126.92, 118.72, 117.19, 115.70, 113.13, 113.01, 109.72, 107.38, 72.63, 56.13, 45.39, 26.77, 26.17, 22.04, 11.61 | 
| 5r* | 8.88(s, 1H), 7.98(d, J=9.5 Hz, 1H), 7.74(s, 1H), 7.60(d, J=8.6 Hz, 1H), 7.09(d, J=8.7 Hz, 1H), 6.30(d, J=9.5 Hz, 1H), 5.78(t, J=7.6 Hz, 1H), 4.36(t, J=7.0 Hz, 2H), 4.03(t, J=6.3 Hz, 2H), 3.93 (s, 3H), 3.61(d, J=7.5 Hz, 2H), 1.95(s, 3H), 1.94—1.86(m, 2H), 1.65—1.56(m, 2H) | 162.49, 160.61, 160.19, 153.34, 152.68, 147.03, 145.06, 135.58, 131.24, 128.10, 114.69, 113.12, 112.77, 108.44, 72.69, 56.78, 50.65, 26.03, 25.75, 22.02, 11.74 | 
| Compd. | MIC/(μg·mL-1) | |||
|---|---|---|---|---|
| S. aureus | E. coli | B. fragilis | P. anaerobius | |
| 5a | 128 | 64 | 64 | 128 | 
| 5b | >128 | >128 | 128 | 128 | 
| 5c | 64 | 32 | 32 | 64 | 
| 5d | 128 | 128 | 1 | 16 | 
| 5e | >128 | 64 | 8 | 32 | 
| 5f | 128 | 64 | 16 | 64 | 
| 5g | 64 | 64 | 2 | 8 | 
| 5h | 64 | 128 | >128 | >128 | 
| 5i | 32 | 16 | 64 | >128 | 
| 5j | >128 | 32 | 64 | >128 | 
| 5k | >128 | >128 | >128 | >128 | 
| 5l | 64 | 64 | 64 | 64 | 
| 5m | 64 | 128 | 8 | 64 | 
| 5n | >128 | 128 | 32 | 32 | 
| 5o | 128 | 32 | 32 | 64 | 
| 5p | >128 | 64 | 8 | 32 | 
| 5q | 128 | 128 | >128 | >128 | 
| 5r | 32 | 32 | 128 | >128 | 
| Metronidazole | 64 | 32 | 0.5 | 0.25 | 
| Norfloxacin | 1 | 4 | 64 | 128 | 
Table 3 MIC values of different target compounds
| Compd. | MIC/(μg·mL-1) | |||
|---|---|---|---|---|
| S. aureus | E. coli | B. fragilis | P. anaerobius | |
| 5a | 128 | 64 | 64 | 128 | 
| 5b | >128 | >128 | 128 | 128 | 
| 5c | 64 | 32 | 32 | 64 | 
| 5d | 128 | 128 | 1 | 16 | 
| 5e | >128 | 64 | 8 | 32 | 
| 5f | 128 | 64 | 16 | 64 | 
| 5g | 64 | 64 | 2 | 8 | 
| 5h | 64 | 128 | >128 | >128 | 
| 5i | 32 | 16 | 64 | >128 | 
| 5j | >128 | 32 | 64 | >128 | 
| 5k | >128 | >128 | >128 | >128 | 
| 5l | 64 | 64 | 64 | 64 | 
| 5m | 64 | 128 | 8 | 64 | 
| 5n | >128 | 128 | 32 | 32 | 
| 5o | 128 | 32 | 32 | 64 | 
| 5p | >128 | 64 | 8 | 32 | 
| 5q | 128 | 128 | >128 | >128 | 
| 5r | 32 | 32 | 128 | >128 | 
| Metronidazole | 64 | 32 | 0.5 | 0.25 | 
| Norfloxacin | 1 | 4 | 64 | 128 | 
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