Synthesis of Hyrtiosin B, a Bis-indole Alkaloid from the Okinawan Marine Sponge Hyrtios erecta
作者:Jan Bergman、Tomasz Janosik、Ann-Louise Johnsson
DOI:10.1055/s-1999-3439
日期:1999.4
The bis-indole alkaloid hyrtiosin B (1) has been prepared in good yield from 5-benzyloxyindole (4a) or 5-methoxyindole (4b), involving a coupling reaction of the zinc metallated indoles with the corresponding glyoxylyl chlorides 5a-b, and finally debenzylation or demethylation using boron tribromide to yield the title compound 1.
从 5-苄氧基吲哚(4a)或 5-甲氧基吲哚(4b)制备双吲哚生物碱 Hyrtiosin B(1)的收率很高,其中涉及金属化锌吲哚与相应的乙醛酰氯 5a-b 的偶联反应,最后使用三溴化硼进行去苄基化或去甲基化反应,得到标题化合物 1。