methyl 2-{3'-(tert-butoxycarbonylamino)-5'-[13''-(3'''-(tert-butyldimethylsilyloxy)-17'''β-(tetrahydro-2H-pyran-2-yl-oxy)-estra-1''',3''',5'''(10''')-trien-16'''β-yl)-tridecynyl]-phenyl}-acetate 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
以80%的产率得到2-{3'-(tert-butoxycarbonylamino)-5'-[13''-(3'''-(tert-butyldimethylsilyloxy)-17'''β-(tetrahydro-2H-pyran-2-yl-oxy)-estra-1''',3''',5'''(10''')-trien-16β-yl)tridecynyl]phenyl}ethyl alcohol