COVALENT ALKYLATION OF DNA WITH DUOCARMYCIN-A - IDENTIFICATION OF ABASIC SITE STRUCTURE

被引:104
作者
SUGIYAMA, H
HOSODA, M
SAITO, I
ASAI, A
SAITO, H
机构
[1] KYOTO UNIV,FAC ENGN,DEPT SYNTHET CHEM,KYOTO 606,JAPAN
[2] KYOWA HAKKO KOGYO CO LTD,TOKYO RES LABS,TOKYO 194,JAPAN
关键词
D O I
10.1016/S0040-4039(00)97278-2
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Alkylation of d(CGTATACG) by antitumor antibiotic duocarmycin A was investigated. It was found that N3 of adenine6 (A6) attacks the cyclopropane subunit of duocarmycin A to produce covalently alkylated adduct 5. Upon heating (90 °C, 5 min) the adduct 5 decomposed to modified oligomer 1 with concomitant release of adenine adduct 2. © 1990.
引用
收藏
页码:7197 / 7200
页数:4
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