Cephalomannine

(a-R, b-S) -a-Hydroxy-b-[[ (2E) -2-methyl-1-oxo-2-buten-1-yl]amino]benzenepropanoic acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS) -6,12b-bis (acetyloxy) -12- (benzoyloxy) -2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7

C/C=C (\C) /C (=O) N[C@@H] (C1=CC=CC=C1) [C@H] (C (=O) O[C@H]2C[C@]3 ([C@H] ([C@H]4[C@@] ([C@H] (C[C@@H]5[C@]4 (CO5) OC (=O) C) O) (C (=O) [C@@H] (C (=C2C) C3 (C) C) OC (=O) C) C) OC (=O) C6=CC=CC=C6) O) O