Schering Corporation

Ellen B Barrabee

Mahesh G Patel

Ann C Horan

Frank A Gentile

N-alkanoyl derivatives of staurospodne represented by the formula I ##STR1## wherein R.sub.a and R.sub.b are each H or ##STR2## wherein R.sub.1 and R.sub.2 are independently H or --OH or --OCH.sub.3 and R.sub.3 is OH, NHCH.sub.3, NCH COCH.sub.3 or NHCOCH.sub.3 and R.sub.4 is OH or H and, stereochemical isomers thereof with the provisos that (1) when R.sub.a and R.sub.b .dbd.A, and R.sub.1.dbd.H.sub.2 or OH R.sub.3 is not NHCH.sub.3 ; (2) when R.sub.a and R.sub.b.dbd. B, then R.sub.1 .dbd.R.sub.4 .dbd.OH or R.sub.1 .dbd.R.sub.4 .dbd.H; (3) when R.sub.a .dbd.R.sub.b .dbd.H R.sub.1 .dbd.--OCH.sub.3, and (4) when R.sub.a and R.sub.b .dbd.A, and R.sub.1 .dbd.H and R.sub.2 .dbd.OCH.sub.3, then R3 is not and ##STR3## pharmaceutical compositions thereof useful for inhibiting myosin light chain kinase, protein kinase C or tumor cell proliferation as well as producing an antihypertensive effect and an anti-inflammatory effect in warm-blood animals such as man are disclosed.

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Fanwood, NJ, United States of America

Ellen B Barrabee