00261nam a2200097Ia 4500008004100000040001100041245003500052260005200087300001400139300001000153251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aJournal of Medicinal Chemistry  cJanuary, 1971bAmerican Chemical SocietyaU.S.A  aP. 1-1276  bV. 14