(11 and 16) - 21- (acetyl oxy) - 11 - hydroxy - 2 ' - methyl - 5 ' H-pureguna - 1,4 - jieno 17,16-D okisazoru - 3,20 - production of dione

摘要

(57) Abstract (11 and 16) the -11,21- jihidorokishi -2'- methyl -5'H- pureguna -1,4- jieno [17,16-d] okisazoru -3,20- dione in the organic solvent which is suited manufacturing method of the chemical compound (11 and 16) -21- (acetyl oxy) -11- hydroxy -2'- methyl -5'H- pureguna -1,4- jieno [17,16-d] okisazoru -3,20- dione (dehurazakoruto) which includes the fact that it reacts with the acetic anhydride in the basic catalyst and under existing of the water.