反应详情

Intermediate 41 (175 mg, 0.19 mmol) was dissolved in methanol (4 mL) and ethyl acetate (1 mL) and treated with palladium on carbon (10% w/w, wet Degussa-type, catalytic amount). The suspension was stirred under a balloon of hydrogen gas for 45 minutes. The mixture was then filtered through a pad of Celite diatomaceous earth, and the filtrate was concentrated to dryness under reduced pressure to provide the title material. ES/MS calcd. for C48H76N3O10Si+882.5. found m/z=882.5 (M+H)+.

1. filtrationThe mixture was then filtered through a pad of Celite diatomaceous earth
2. concentrationthe filtrate was concentrated to dryness under reduced pressure