r D:\Msd22Uuil06V2307\17807474F3.D r L n Li [ n ! '•-.■ r u : 4 U a :, 5a Androstanol AC Etiocholanolone AC !?rK^5'.(si'.ij' ; ;r si* ;j? ];:jS:3:~?^ : S^ Q ^Si ffl ^^S^^d Jrfe^ffT 5b Androstan 3a 17b diol diAC — - mamm •faesxm iinumn ?1" *"*"" I l\ nm I M ~ V /\.._ 11 KetoEtiocholanolone AC Androsterone AC 5a Androstan 3a 17b diol diAC 5b Pregnan 3a 20a diol diAC SWfiSIKSSSSR mamt. n 1 1 ' / _«1 1/ \\ //Tffl J/ ^\ Page 2 of 2 C:\MSDCHEM\CUSTRPT\MAN52.CRT 7/23/2006 12:00 PM US ADA 0145 J3k