Carbamates of rapamycin

A compound of the structure ##STR9## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen, or --CONH--O--(CR.sup.3 R.sup.4).sub.m Z;

• R.sup.3 and R.sup.4 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, --CF.sub.3, or F;
• Z is hydrogen, alkyl of 1-6 carbon atoms, --OR.sup.5, --SR.sup.5, --NRSR.sup.6, --CN, --CF.sub.3, --OAr, --Ar, or R.sup.7 ;
• R.sup.5 and R.sup.6 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, arylalkyl of 4-10 carbon atoms, alkenyl of 2-7 carbon atoms, alkynyl of 2-7 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, alkylthioalkyl of 2-12 carbon atoms, alkylaminoalkyl of 2-12 carbon atoms, dialkylaminoalkyl of 3-12 carbon atoms, cycloalkyl of 3-8 carbon atoms, or Ar;
• R.sup.7 is ##STR10## or --C.tbd.C--R.sup.11 ;
• R.sup.8, R.sup.9, R.sup.10, and R.sup.11 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, halogen, or phenyl, wherein the phenyl group may be optionally mono-, di-, or tri-substituted with a group selected from alkyl of 1-6 carbon atoms, arylalkyl of 7-10 carbon atoms, alkoxy of 1-6 carbon atoms, cyano, halo, hydroxy, nitro, carbalkoxy of 2-7 carbon atoms, trifluoromethyl, trifiuoroalkoxy of 2-7 carbon atoms, amino, dialkylamino of 1-6 carbon atoms per alkyl group, dialkylaminoalkyl of 3-12 carbon atoms, hydroxyalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, alkylthio of 1-6 carbon atoms, --SO.sub.3 H, --PO.sub.3 H, and --CO.sub.2 H;
• Ar is an aryl radical selected from the group consisting of phenyl, naphthyl, pyridyl, quinolinyl, isoquinolinyl, quinoxalyl, thienyl, thionaphthyl, furyl, benzofuryl, benzodioxyl, benzoxazolyl, benzoisoxazolyl, indolyl, thiazolyl, isoxazolyl, pyrimidinyl, pyrazinyl, imidazolyl, benzopyranyl, benzothiophenolyl, benzimidazolyl, benzthiazolyl, benzodioxolyl, piperidinyl, morpholinyl, piperazinyl, tctrahydrofuranyl, and pyrrolidinyl that may be optionally mono-, di-, or tri-substituted with a group selected from alkyl of 1-6 carbon atoms, arylalkyl of 7-10 carbon atoms, alkoxy of 1-6 carbon atoms, cyano, halo, hydroxy, nitro, carbalkoxy of 2-7 carbon atoms, trifluoromethyl, trifluoroalkoxy of 2-7 carbon atoms, amino, dialkylamino of 1-6 carbon atoms per alkyl group, dialkylaminoalkyl of 3-12 carbon atoms, hydroxyalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, alkylthio of 1-6 carbon atoms, --SO.sub.3 H, --PO.sub.3 H, and --CO.sub.2 H;
• and
• m=1-6;
• with the proviso that R.sup.1 and R.sup.2 are both not hydrogen, or a pharmaceutically acceptable salt thereof.