PROCEDURE FOR THE PREPARATION OF TRIHYDRATE OF (2R, 3S) -3-TERC-BUTOXICARBONILAMINO-2-HIDROXI-3-FENILPROPIONATO DE 4-ACETOXI-2ALFA-BENZOILOXI-5BETA, 20-EPOXI-1,7BETA-10BETA, 10 -OXO-TAX-11-EN-13ALFA-ILO.

摘要

(2R, 3S)} TERT-BUTOXICARBONYLAMINO-2-HYDROXY-3-PHENYLPROPIONATE 4ACETOXI-2 {AL} -BENCOYLOXI-5 {BE} -20 {BE} -TRI PREPARATION PROCEDURE -9-OXO-TAX-11-EN-13 {AL} -ILO BY CRYSTALLIZATION FROM A HYDROALCOHOLIC SOLUTION.