Fremgangsmåte for fremstilling av 4-acetoksy-2-benzoyloksy-5, 20-epoksy-1, 7, 10-trihydroksy-9-okso-tax-11-en-13-yl (2R,3S)-3-tert-butoksykarbonylamino-2-hydroksy-3-fenyl-propionat trihydrat
PCT No. PCT/FR95/00910 Sec. 371 Date Apr. 25, 1997 Sec. 102(e) Date Apr. 25, 1997 PCT Filed Jul. 7, 1995 PCT Pub. No. WO96/01815 PCT Pub. Date Jan. 25, 1996Process for the preparation of 4-acetoxy-2 alpha -benzoyloxy-5 beta ,20-epoxy-1,7 beta , 10 beta -trihydroxy-9-oxo-tax-11-en-13 alpha -yl (2R,3S...
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Main Authors | , , , , |
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Format | Patent |
Language | Norwegian |
Published |
02.01.1997
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | PCT No. PCT/FR95/00910 Sec. 371 Date Apr. 25, 1997 Sec. 102(e) Date Apr. 25, 1997 PCT Filed Jul. 7, 1995 PCT Pub. No. WO96/01815 PCT Pub. Date Jan. 25, 1996Process for the preparation of 4-acetoxy-2 alpha -benzoyloxy-5 beta ,20-epoxy-1,7 beta , 10 beta -trihydroxy-9-oxo-tax-11-en-13 alpha -yl (2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy-3-phenylpropionate trihydrate, characterized in that the 4-acetoxy-2 alpha -benzoyloxy-5 beta ,20-epoxy-1,7 beta ,10 beta -trihydroxy-9-oxo-tax-11-en-13 alpha -yl (2R,3S)-3-tert-butoxycarbonylamino-2-hydroxy-3-phenylpropionate is crystallized from a mixture of water and an aliphatic alcohol containing 1 to 3 carbon atoms, and then the product obtained is dried under defined conditions of temperature, pressure and humidity. |
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Bibliography: | Application Number: NO19970000007 |