HCID 53900326, compound → HCID 54054556, compound

Participants

Reaction Steps

The product of Example 68 was subjected in an analogous manner to the procedure described in Example 1(f) and the resulting (R)-16-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-14-methoxy-13-methyl-6,12-dioxo-1,3,4,5,6,7,8,9,10,12-decahydro-11,2,5-benzoxathiaazacyclotetradecine-4-carboxylic acid amide was reacted in toluene with an equimolar amount of 2,4-bis-(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiaphosphetane at -60° C. for 30 min. The solvent was evaporated in vacuo, and the residue was chromatographed on silica gel using ethyl acetate/hexane (1:2, v/v) as eluent, to yield (R)-16-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-14-methoxy-13-methyl-6,12-dioxo-1,3,4,5,6,7,8,9,10,12-decahydro-11,2,5-benzoxathiaazacyclotetradecine-4-thiocarboxylic acid amide as a white foam.

Provenance & Evidence