asperparaline A

(3R,5R,12R)-1′,4,4,12,14-Pentamethyl-2′H,5′H,13H-spiro[9,14-diazatetracyclo[5.5.2.0~1,9~.0~3,7~]tetradecane-5,3′-pyrrolidine]-2′,5′,13-trione

asperparaline A

(1R,5aR,7R,8aR,9aS)-1,1′,8,8,11-pentamethyltetrahydro-1H,2′H,5′H,8H,10H-spiro[5a,9a-(epiminomethano)cyclopenta[f]indolizine-7,3′-pyrrolidine]-2′,5′,10-trione

aspergillimide