Trimethylsilyldiazomethane → HCID 69795109, compound

Participants

Reaction Steps

A total of 1.5 ml of a 2 molar solution of trimethylsilyldiazomethane in hexane is added in portions to a solution of 250 mg of (3R,6R,7aS)-6-benzyl-6-tert-butoxycarbonylamino-5-oxohexahydropyrrolo[2,1-b]thiazole-3-carboxylic acid in 8 ml of methanol while stirring at room temperature. After the reaction is complete, the excess trimethylsilyldiazomethane is destroyed by dropwise addition of glacial acetic acid, and the volatile constituents are stripped off in a rotary evaporator at 40° C. The residue is purified on a column (silica gel, mobile phase:ethyl acetate:n-heptane=1:1.5).

Provenance & Evidence