Method and compositions for inhibiting protein kinases

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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A61K 31365

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active

057287260

ABSTRACT:
A method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a molecule of the formula ##STR1## wherein R.sub.1 is H, lower alkyl, or lower alkanoyl; R.sub.2 is H, lower alkyl, or lower alkanoyl; R.sub.3 and R.sub.4 together represent a cis double bond or --0-- or each of R.sub.3 and R.sub.4 independently represents H or OR; R.sub.5 is .dbd.O, .dbd.S, or --H, --OR; R.sub.6 and R.sub.7 together represent a double bond or --O-- or each of R.sub.6 and R.sub.7 independently represents H or OR; R.sub.8 and R.sub.9 together represent a double bond or --O-- or each of R.sub.8 and R.sub.9 independently represents H or OR; and each R independently represents H, lower alkyl, or lower alkanoyl.

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