Meisenheimer Rearrangement of Azetopyridoindoles. V. Synthesis of 9-Methyl-12-carbaeudistomin and Related Compounds.
作者:Takushi KURIHARA、Yasuhiko SAKAMOTO、Masato TAKAI、Kiyoko TSUKAMOTO、Tomoko SAKAI、Shinya HARUSAWA、Ryuji YONEDA
DOI:10.1248/cpb.42.31
日期:——
9-Methyl-12-carbaeudistomin (1, 13b-cis-1-amino-13-methyl-1, 2, 3, 4, 7, 8, 13, 13b-octahydro[1', 2']oxazepino-[2', 3', : 1, 2]pyrido[3, 4-b]indole) (2), which has a carbon atom instead of the sulfur atom in the D-ring of tetracyclic eudistomins (1), its 1, 10-trans isomer (3), and their 11, 12-didehydro derivatives (4 and 5) were synthesized from 2-vinylazetopyridoindoles (8 and 17) via the [2, 3]-Meisenheimer rearrangement of the corresponding N-oxides, for structure-activity relationship study of edistomins (1). Similarly, 5-amino-3, 6-epoxyhexahydroazocino[5, 4-b]-indoles (6 and 7) were synthesized from 2-ethylazetopyridoindole (33) via the [1, 2]-Meisenheimer rearrangement of the corresponding N-oxide.
9-甲基-12-羧基二环戊二烯(1,13b-顺式-1-氨基-13-甲基-1,2,3,4,7,8,13,13b-八氢[1',2']氧氮杂卓-[2',3',:1,2]吡啶并[3,4-b]吲哚)(2)在四环二环戊二烯(1)的D环中以碳原子代替了硫原子,其1,10-反式异构体(3)及其11,12-二脱氢衍生物(4和5)由2-乙烯基氮杂吡啶吲哚(8和17)通过相应N-氧化物的[2,3]-梅森海默重排合成,用于二环戊二烯(1)的结构活性关系研究。 同样,5-氨基-3,6-环氧六氢氮杂吲哚并[5,4-b]吲哚(6和7)由2-乙基氮杂吡啶吲哚(33)通过相应N-氧化物的[1,2]-梅森海默重排合成。