Benzylamine → HCID 57308337, compound

Participants

Reaction Steps

To a solution of 17-ethyl-20-fluoro-1, 14-dihydroxy-12-[2'-(3"-methoxy-4"-oxocyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ] octacos-18-ene-2,3,10,16-tetraone from Example 24 (79.7 mg) in dry isopropyl alcohol (3 ml) is added benzylamine (86.5 mg). The mixture is stirred at r.t. for 30 min., and cooled to -78° C. To this solution is added a solution of sodium cyanoborohydride (6.7 mg) in isopropyl alcohol (0.5 ml). The reaction is stirred at -78° C. and poured into ice water. Extraction with ethyl acetate, followed by purification gives the title compound as a mixture of epimers at C-4".

Provenance & Evidence