Butenyl substituted taxanes and pharmaceutical compositions cont

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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544 60, 544147, 544375, 546196, 546207, 548525, 549214, 549510, 549511, A61K 31335, C07D30514

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active

052848647

ABSTRACT:
Taxane derivatives of the formula ##STR1## wherein R.sub.1 is butenyl,

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