作者:A. Roderick Mackenzie、Christopher J. Moody、Charles W. Rees
DOI:10.1016/s0040-4020(01)87390-7
日期:1986.1
A short total synthesis of the bacterial coenzyme methoxatin (1) (4,5-dihydro-4, 5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid) is described. The route involves the two step conversion of 4-acetamido-2-benzy1oxybenzaldehyde (5b) into methyl 6-acctamido-4-benzyloxyindole-2-carboxylate (7b) (74%), followed by regioselective annulation of the third ring (55%),and debenzylation and oxidation
描述了细菌辅酶methoxatin(1)(4,5-二氢-4,5-dioxo-1H-吡咯并[2,3-f]喹啉-2,7,9-三羧酸)的短总合成。该路线涉及将4-乙酰氨基-2-苯甲酰氧基苯甲醛(5b)分两步转化为6-氨基--2-酰胺基-4-苄氧基吲哚-2-羧酸酯(7b)(74%),然后是第三环的区域选择性环化反应(55%) ),然后用苯甲酰基叔丁基亚硝基氧进行脱苄基化和氧化,得到三环醌三酯(13)(甲氧沙丁三酯)(83%)。