PROCESS FOR PREPARATION OF 20-OXO 17-ALPHA, 21-DIHYDROXY STEROIDS AND THEIR NEW INTERMEDIATES

摘要

the invention is a new procedure for the vu0151natku0151zik (i) report of the u00e1ltalu00e1nu0151s ku00e9pletu0171vegyu00fcletek formula, r1 or r2 alkilcsu0151pu0151rt hidru0151gu00e9natu0151m alkilcsu0151pu0151rt, report on, and the a, b,c and d ring may contain one or more double bond, and adu0151tt case, one or more desired case, hidru0151xil - protected, or ketu0151nfu0171nkciu00f3scsu0151pu0151rttal, one or more halu0151gu00e9natu0151mmal, one or more of alk in l,u0151xi - alkyl -, or may be alkenil alkinilcsu0151pu0151rttal szu0171bsztitu0171u00e1lva for the production of a 17u00df - hidru0151xi addu0171ktu0171m epimerizu00e1lu00e1su00e1val, which u00fagyu00e1llu00edtanak outthe hu0151gy lu00edtiu0151 vinylene - acetu0151nidu0151t 17, two szteru0151iddalreagu00e1ltatva 17a - hidru0151xi - moiety into double allilesszu0171lfenu00e1t / alliles szu0171lfu0151xid u00e1trendezu0151du00e9sen throughand the kapu0151ttvegyu00fcletet natural ku0151nfigu0171ru00e1ciu00f3ju00fa ku0151rtiku0151szteru0151iddu00e1 a hidru0151lizu00e1lju00e1k.