Exploring Huperzine A. To explore a different substance…

Huperzine A
(5R,9R,11E)-5-Amino-11-ethylidene-7-methyl-5,6,9,10-tetrahydro-5,9-methanocycloocta[b]pyridin-2(1H)-one
 3684  C15H18N2O  242.316
 InChI=1S/C15H18N2O/c1-3-11-10-6-9(2)8-15(11,16)12-4-5-14(18)17-13(12)7-10/h3-6,10H,7-8,16H2,1-2H3,(H,17,18)/b11-3+/t10-,15+/m0/s1
 ZRJBHWIHUMBLCN-YQEJDHNASA-N This stereoisomer Any stereoisomer
 C/C=C/1\[C@H]2C=C(C[C@]1(N)c1c(C2)[nH]c(=O)cc1)C