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]]-