Process for the preparation of sulphinylpristinamycin IIB

摘要

PCT No. PCT/FR91/00580 Sec. 371 Date Jan. 14, 1993 Sec. 102(e) Date Jan. 14, 1993 PCT Filed Jul. 15, 1991 PCT Pub. No. WO92/01693 PCT Pub. Date Feb. 6, 1992.Preparation of (dialkylamino-2 alkyl) sulphinyl-26 pristinamycin IIB by oxidation of (dialkylamino-2 alkyl)thitinamycin IIB, by hydrogen peroxide in the presence of sodium tungstate, in alcoholic medium.