p-Toluenesulfonic acid → HCID 57163898, compound

Participants

Reaction Steps

A stirred solution of 17-Allyl-1,14-dihydroxy-12-[2-(3,4-dimethoxycyclohexyl)-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 (10 mg, prepared by methylation of macrolide FR 900506), in toluene (5 ml) containing a trace of tosic acid was heated on a steam bath for 5 minutes. Removal of solvent in vacuo and chromatography on silica eluting with ethyl acetate gave the title compound as an oil (8 mg).

Provenance & Evidence