Synthesis and Cytotoxic Activity of Benzopyranoxanthone Analogues of Benzo[b]acronycine and Psorospermine.
作者:Chavalit SITTISOMBUT、Nadine COSTES、Sylvie MICHEL、Michel KOCH、François TILLEQUIN、Bruno PFEIFFER、Pierre RENARD、Alain PIERRÉ、Ghanem ATASSI
DOI:10.1248/cpb.49.675
日期:——
3-hydroxy-2-naphthalenecarboxylic acid with phloroglucinol afforded 1,3-dihydroxy-12H-benzo[b]xanthen-12-one. Construction of an additional dimethylpyran ring onto this skeleton, by alkylation with 3-chloro-3-methyl-1-butyne followed by Claisen rearrangement, gave access to a series of benzo[b]pyrano[2,3-i]xanthen-6-ones and benzo[b]pyrano[3,2-h]xanthen-7-ones related to psorospermine and benzo[b]acronycine. In
3-羟基-2-萘甲酸与间苯三酚缩合得到1,3-二羟基-12H-苯并[b]黄原-12-。通过用3-氯-3-甲基-1-丁炔进行烷基化,然后进行克莱森重排,在该骨架上构建一个额外的二甲基吡喃环,从而可以得到一系列苯并[b]吡喃并[2,3-i]黄嘌呤-6 -Ponerospermine和benzo [b] acronycine相关的-ones和benzo [b] pyrano [3,2-h] xanthen-7-ones。与在吡啶并rid啶酮和苯并吡啶并ac啶酮系列中观察到的相反,线性苯并[b]-吡喃并[2,3-i]黄原-6-衍生物比它们的角苯并[b]吡喃并[3,2-]更有效。 h]黄嘌呤-7-异构体。顺式-3,4-二乙酰氧基-5-甲氧基-2,2-二甲基-3,4-二氢-2H,6H-苯并[b]吡喃并[2,3-i]黄嘌呤-6-中最活跃的新化合物,