Chemical Name: (3S,4R,5S,8S,9E,12S,14S,15R,16S,18R,19R,26aS)-5,19-Dihydroxy-3-[(1E)-1-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(prop-2-en-1-yl)-3,4,5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-octadecahydro-7H-15,19-epoxypyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(23H)-tetrone (as per EP); (3S,4R,5S,8S,9E,12S,14S,15R,16S,18R,19R,26aS)-8-Allyl-5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-{(E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]-1-methylvinyl}-14,16-dimethoxy-4,10,12,18-tetramethyl-15,19-epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone (as per USP)
Synonym: Tacrolimum 8-Epimer (USP) ; 8-epi-Tacrolimus
Smiles: O[C@H]1[C@H](OC)C[C@H](/C=C(C)/[C@@H](OC([C@@H]2N(C(C([C@@]3(O)[C@H](C)C[C@H](OC)[C@]4([H])O3)=O)=O)CCCC2)=O)[C@H](C)[C@@H](O)CC([C@@H](CC=C)/C=C(C[C@H](C)C[C@@H]4OC)\C)=O)CC1
Inchi: InChI=1S/C44H67NO11/c1-10-13-32-21-26(2)20-27(3)22-37(53-8)40-38(54-9)24-30(6)44(51,56-40)41(48)42(49)45-19-12-11-14-33(45)43(50)55-39(28(4)15-17-34(32)46)29(5)23-31-16-18-35(47)36(25-31)52-7/h10,15,17,21,23,27-28,30-33,35-40,47,51H,1,11-14,16,18-20,22,24-25H2,2-9H3/b17-15+,26-21+,29-23+/t27-,28+,30+,31-,32+,33+,35+,36+,37-,38-,39-,40+,44+/m0/s1
Development and validation of a stability indicating HPLC assay method for tacrolimus in semi-solid dosage form & bulk drug
By Gejage, Santosh; Amin, Purnima
From Indo American Journal of Pharmaceutical Research (2018), 8(5), 1097-1106