The Study of Molecular Recognition of 5(2-Carboxyphenyl)10,15,20 triphenylporphyrin to Amino Acid Esters

Abstract

Abstract: Using UV-Vis spectroscopic and ¹HNMR methods, we have invest igated The molecu lar recognition of am ino acid esters by 5(2 carbox ypheny l)10, 15, 20 tripheny lporphyrin.The binding const ants between o-TPPCO₂H and Lphenylalanine ethylester, and Lthreonine ethyl ester were obt ained.The possible recognition mode of The free porphyrin to amino acid esters has been suggested.The hydrogen bond between one of The two hydrogens of pyrroL in o-TPPCO₂H and The oxygen of The carboxyl group of amino acid ester acts as one point of interaction.Another pointof interaction is The base acid interaction between amino group of amino acid ester and car boxyl group of porphyrin.

Key words: Porphyrin, Amino acid esters, New mode of molecular recognition

CLC Number:

O614.241

TrendMD:

PENG Xiao-Bin, HUANG Jin-Wang, JI Liang-Nian . The Study of Molecular Recognition of 5(2-Carboxyphenyl)10,15,20 triphenylporphyrin to Amino Acid Esters[J]. Chem. J. Chinese Universities, 1999, 20(1): 19.

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The Study of Molecular Recognition of 5(2-Carboxyphenyl)10,15,20 triphenylporphyrin to Amino Acid Esters

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