QT031241

Tacrolimus Impurity 41

Synonyms: (3S,4R,5S,8R,12S,14S,15R,16S,18R,26aS,E)-8-allyl-20-ethoxy-5,15,20-trihydroxy-3-((E)-1-((1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl)prop-1-en-2-yl)-14,16-dimethoxy-4,10,12,18-tetramethyl-3,4,5,6,11,12,13,14,15,16,17,18,24,25,26,26a-hexadecahydro-1H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,19,21(8H,20H,23H)-tetraone