(-)-Rapamycin 23,27-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclohentriacontine- 1,5,11,28,29(4H,6H,31H)-pentone, 9,10,12,13,14,21,22,23,24, 25,26,27,32,33,34,34a-hexadecahydro-9,27-dihydroxy- 3-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethyl]- 10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-, [3S-[3R*[S* (1R*,3S*,4S*)],6S*,7E,9S*,10S*,12S*,14R*,15E,17E,19E,21R*, 23R*,26S*,27S*,34aR*]]- 53123-88-9 AY 22989 Antibiotic AY 22989 NSC226080 RAPAMYCIN Rapammune Rapamune SIIA 9268A Sirolimus Wy 090217