Sirolimus Isomer A

Chemical Name: (3S,6R,7E,9R,10R,12R,14S,15E,17E,19E,21S,23S,26R,34aS)-9,23-dihydroxy-3-((R)-1-((1S,3R,4R)-4-hydroxy-3-methoxycyclohexyl)propan-2-yl)-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-9,10,13,14,21,22,23,24,25,26,32,33,34,34a-tetradecahydro-3H-pyrido[2,1-c][1]oxa[4]azacyclohentriacontine-1,5,11,27,28,29(4H,6H,12H,31H)-hexaone