Secorapamycin B

Chemical Name: (S)-1-(2-((2R,3R,6S)-6-((2S,3E,5E,7E,9S,11R,13R,14R,15E,17R,20S,21R)-14,20-Dihydroxy-22-((1S,3R,4R)-4-hydroxy-3-methoxycyclohexyl)-2,13-dimethoxy-3,9,11,15,17,21-hexamethyl-12,18-dioxodocosa-3,5,7,15-tetraen-1-yl)-2-hydroxy-3-methyltetrahydro-2H-pyran-2-yl)-2-oxoacetyl)piperidine-2-carboxylic acid

Synonym: 34-Hydroxy Sirolimus