Solvates of 4-acetoxy-2a-benzoyloxy-5ss,20-epoxy-1,7ss,10ss-trihydroxy-9-oxo-tax-11 -en- 13a-yl (2r,3s)-3-tert-butoxycarbonylamino-2-hydroxy-3-phenylpropionate
作者： Ciesllnski Witold Stanislaw
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摘要: The present invention provides solvates of 4-acetoxy-2a-benzoyloxy-5ss,20-epoxy-1,7ss,10ss- trihydroxy-9-oxo-tax-11 -en-13a-yl (2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy-3- phenylpropionate and C2-3-alkyl esters formic acid, process their preparation use in the synthesis pharmaceutically pure 4-acetoxy-2a-benzoyloxy-5ss,20-epoxy- 1,7ss,10ss-trihydroxy-9-oxo-tax-11-en-13a-yl (2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy- 3-phenylpropionate.
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