?23-FK-506; 3S,4R,8R,12S,14S,15R,16S,18R,19R,26aS)-8,11,12,13,14,15,16,17,18,19,24,25,26,26a-tetradecahydro-19-hydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propen-1-yl)-15,19-epoxy(5E,9E)-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone; 23,24-Anhydro Tacrolimus; Tacrolimus Diene
