174071. lajstromszámú szabadalom • Eljárás oxazolino-azetidinil-penténsav származékok előállítására

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14-CHjPh -CH2Ph - 1788,1748,1647, l,73brs3H, 3,60s2H, 4,73slH, 4,98brslH, 5,10brslH,

1172. 5,12s2H, 5,09d(3,8Hz)lH, 5,73d(3,8Hz)lH, 7,27-7,33mlOH.