Patent number: 5643884
Abstract: This invention relates generally to the field of medicinal chemistry, and more specifically to derivatives of a subclass of triterpenoid acids that have multi-medicament properties, that is derivatives of the lupane, betulinic acid, formulations containing such, and their use to prevent or treat certain diseases, and preferably to derivatives or analogues of betulinic acid, that have the following structural formula (1): ##STR1## wherein: Y is OR.sup.1, NR.sup.1.sub.2, O.sup.- M.sup.1 ;R.sup.1 is H, LOWER ALKYL,M.sup.1 is Na.sup.+, K.sup.+, Mg.sup.++, Ca.sup.++ ions;each R.sup.2 is independently CH.sub.2 OR.sub.1 or CH.sub.3 ;each R.sup.3 is independently H, CH.sub.3, lower alkyl, COY, CH.sub.2 OH, CH.sub.2 OCH.sub.2 CH=CH.sub.2, CH.sub.2 OSO.sub.3.sup.- M.sup.1 ;each Z is independently NHR.sup.1.sub.2, NR.sup.1 Ac, NR.sup.1 Bz, H, OCH.sub.3, lower alkyl, OH, OSO.sub.3.sup.- M.sup.1, OCH.sub.2 CH=CH.sub.2, OCH.sub.2 CO.sub.2 H or O-glucoside;each X is independently O, S, NR.sup.1 or NR.sub.2.sup.
Type:
Grant
Filed:
August 9, 1993
Date of Patent:
July 1, 1997
Assignee:
Glycomed Incorporated
Inventors:
Mark Brian Anderson, John Henry Musser