dihydrogardmultine

(3R,3'S,7'S,8a'S,E)-6'-ethylidene-4,5,7-trimethoxy-2',3',6',7',8',8a'-hexahydro-5'H-spiro[indoline-3,1'-[3,7]methanoindolizine]-2,9'-dione

Gardneramine

Dispiro[13,8b,10-ethanylylidene-11H-pyrido[2',- 3':5,6]oxepino[2,3-b]oxazolo[3,2-a]indole-2- (3H),9'-[3,7]methanoindolizine-1'(5'H),3''-[3H]- indol]-2''(1''H)-one,6'-ethylidene-2',3',6',7',- 8',8'a,9,