STUDIES ON 6-METHYL-5-DEAZATETRAHYDROPTERIN AND ITS 4A ADDUCTS

被引:45
作者
MOAD, G [1 ]
LUTHY, CL [1 ]
BENKOVIC, PA [1 ]
BENKOVIC, SJ [1 ]
机构
[1] PENN STATE UNIV,DEPT CHEM,UNIVERSITY PK,PA 16802
关键词
D O I
10.1021/ja00514a033
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The oxidation properties of 6-methyl-5-deazatetrahydropterin (2) have been examined. The compound (2) reacts with a variety of electrophilic reagents (including A’-halosuccinimide, bromine, peroxy acid, and singlet oxygen) to generate the corresponding 4a adduct. These adducts (3-6) are characterized by their spectral properties (1H and 13C NMR, UV) and analytical data. The aqueous-solution chemistry of the adducts is a function of the nature of the 4a substituent. The bromo and chloro adducts are readily reduced (and the former compound is an active brominating agent), while the hydroxy adduct undergoes a facile decomposition with rupture of the pyrimidine ring. The compound 2 is a competitive inhibitor of both phenylalanine and tyrosine hydroxylases, whereas the 4a adducts (3-6) show no apparent interaction with the enzyme. © 1979, American Chemical Society. All rights reserved.
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页码:6068 / 6076
页数:9
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