chemical has protein target as antagonist 18-oxayohimban [H][C@@]12CCOC[C@@]1([H])CN1CCc3c([nH]c4ccccc34)[C@]1([H])C2 282.17321 InChI=1S/C18H22N2O/c1-2-4-16-14(3-1)15-5-7-20-10-13-11-21-8-6-12(13)9-17(20)18(15)19-16/h1-4,12-13,17,19H,5-11H2/t12-,13+,17-/m0/s1 (4aR,13bS,14aR)-1,2,4a,5,7,8,13,13b,14,14a-decahydro-4H-indolo[2,3-a]pyrano[3,4-g]quinolizine oxayohimban GAGIJETXYAHUIP-AHIWAGSCSA-N Reference: PMID: 9144641 18-oxayohimban 0 282.38016 C18H22N2O CHEBI:35638 chebi_ontology indole alkaloid fundamental parent indole alkaloid antagonist sigma non-opioid intracellular receptor 1