00294nam a2200109Ia 4500008004100000040001100041100002500052245003500077260004500112300001700157300001000174251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aPhilip S. Portoghese 0aJournal of Medicinal Chemistry  cJanuary, 1971bWaverly Press Inc.aU.S.A  aP. 1069-2360  bV. 37