Patent number: 5504091
Abstract: A compound of the structure ##STR1## R.sup.1 and R.sup.2 are each, independently, hydrogen or ##STR2## X is ##STR3## Y is ##STR4## Z is --CH.sub.2 --, --S--S--, or ##STR5## R.sup.3 is hydrogen, alkyl, arylalkyl, alkenyl, alkynyl, --(CH.sub.2).sub.q CO.sub.2 R.sup.5, --(CH.sub.2).sub.r NR.sup.6 R.sup.7, carbamylalkyl, aminoalkyl, hydroxyalkyl, guanylalkyl, mercaptoalkyl, alkylthioalkyl, indolylmethyl, hydroxyphenylmethyl, imidazoylmethyl, halo, trifluoromethyl, or phenyl which is optionally mono-, di-, or tri-substituted;R.sup.4, R.sup.6, and R.sup.7 are each, independently, hydrogen, alkyl, or arylalkyl;R.sup.5 is hydrogen, alkyl, arylalkyl, alkenyl, alkynyl, or phenyl which is optionally mono-, di-, or tri-substituted;h=0-1;j=0-1;m=0-6;n=0-6;p=0-10;q=0-10;r=0-6;with the proviso that R.sup.1 and R.sup.2 are not both hydrogen, or a pharmaceutically acceptable salt thereof which is useful for inducing immunosuppression; in the treatment of transplantation rejection, host vs.
Type:
Grant
Filed:
April 14, 1994
Date of Patent:
April 2, 1996
Assignee:
American Home Products Corporation
Inventors:
Katherine L. Molnar-Kimber, Timothy D. Ocain, Steven K. Vernon, John J. Huang