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4-Acetoxy-2.alpha.-benzoyloxy-5.beta.,20-epoxy-1.beta.,7.beta.,10.beta.-tri hydroxy-9-oxo-11-taxen-13.alpha.-yl(2R,3S)-3-t-butoxycarbonylamino-3-phenyl -2-hydroxypropionate trihydrate

US Patent 6197980 · Granted Mar 6, 2001

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