126381-86-0 2-Butenoicacid, 2-methyl-,dodecahydro-10-hydroxy-11-oxo-7,14-methano-2H,6H-dipyrido[1,2-a:1',2'-e][1,5]diazocin-2-ylester, [2S-[2a(Z),7b,7ab,10b,14b,14aa]]- 126381-87-1 2-Butenoicacid, 2-methyl-,dodecahydro-3-hydroxy-4-oxo-7,14-methano-2H,6H-dipyrido[1,2-a:1',2'-e][1,5]diazocin-2-ylester, [2R-[2a(Z),3b,7b,7aa,14b,14ab]]-