00303nam a2200109Ia 4500008004100000040001100041100002500052245003500077260005600112300001600168300000900184251112s9999||||xx |||||||||||||| ||und|| aCNCLSA aPhilip S. Portoghese 0aJournal of Medicinal Chemistry c1957bAmerican Society for MicrobiologyaWashington aP. 685-1478 bV. 5