(2aR,2a1S,6R,6aS,9aS)-6-(2-methyl-3-((triisopropylsilyl)oxy)allyl)-9-tosyloctahydro-4H,5H-1,3-dioxa-4a,9-diazapentaleno[1,6-cd]inden-4-one 在
三溴化硼 作用下,
以
二氯甲烷 为溶剂,
生成 (1S,2R,3R,8R,10R,11R)-3-(hydroxymethyl)-10-methyl-12-(4-methylphenyl)sulfonyl-5-oxo-4-oxa-6,12-diazatetracyclo[6.6.0.02,6.02,11]tetradecane-10-carbaldehyde 、 (1S,2R,3R,8R,10S,11R)-3-(hydroxymethyl)-10-methyl-12-(4-methylphenyl)sulfonyl-5-oxo-4-oxa-6,12-diazatetracyclo[6.6.0.02,6.02,11]tetradecane-10-carbaldehyde