申请人:South Alabama Medical Science Foundation
公开号:US05350851A1
公开(公告)日:1994-09-27
Intermediates and a process for the synthesis of 6-monosubstituted tetrahydropteridine C6-stereoisomers, including (6S)-tetrahydrofolic acid. The intermediates are shown in their two enantiomeric forms as follows: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and represent hydrogen, methyl, hydroxy, amino, alkyl or dialkylamino, alkoxy, benzyloxy, or benzylthio; R.sub.3 represents an alkene, alkyne, cycloalkyl, benzyl, alkyl (substituted with hydroxy, acetoxy, benzyloxy, alkoxy, alkylthio, amino, carboxy, oxo, or phosphate), a protected aldehyde, or ##STR2## wherein n=1 or 2, R.sub.4 is hydrogen, formyl, methyl, or propargyl, and ZZ represents an amino acid or amino acid polymer.
用于合成6-单取代
四氢喹啉C6-立体异构体(包括(6S)-四氢叶酸)的中间体和过程。中间体以其两个对映异构体形式显示如下:##STR1## 其中R.sub.1和R.sub.2相同或不同,表示氢,甲基,羟基,
氨基,烷基或二烷基
氨基,烷氧基,苄氧基或苄
硫基;R.sub.3表示烯烃,
炔烃,环烷基,苄基,烷基(用羟基,乙酰氧基,苄氧基,烷氧基,烷
硫基,
氨基,羧基,氧代基或
磷酸酯取代),受保护的醛基,或##STR2## 其中n=1或2,R.sub.4为氢,甲酰基,甲基或
丙炔基,ZZ表示
氨基酸或
氨基酸聚合物。