1ST EXAMPLE OF DIASTEREOTOPIC FACE ACTIVATION AND CHIRAL RECOGNITION WITHOUT METAL ASSISTANCE - A NOVEL 5-DEAZAFLAVIN ENZYME MODEL

被引:14
作者
KAWAMOTO, T
TOMISHIMA, M
KUNITOMO, J
YONEDA, F
HAYAMI, J
机构
[1] KYOTO UNIV,FAC PHARMACEUT SCI,SAKYO KU,KYOTO 60601,JAPAN
[2] KYOTO UNIV,GRAD SCH HUMAN & ENVIRONM STUDIES,SAKYO KU,KYOTO 60601,JAPAN
关键词
D O I
10.1016/S0040-4039(00)60865-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A chiral 5-deazaflavin 1 with 2-hydroxynaphthyl group at N(3) position of the pyrimidine ring moiety was synthesized. 1 underwent, in the absence of magnesium ion, a ''(net) hydride transfer'' from BNAH to C(5) almost exclusively on the face where OH group is present. It was also the case with PNPH, and enantioselectivity for PNPH by 1 was higher in the absence of magnesium ion than in its presence. These results indicate that the ''diastereotopic face activation'' in 1 is operated as well as chiral recognition for PNPH by 1.
引用
收藏
页码:7173 / 7176
页数:4
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