Croomine-type alkaloids

Stemona alkaloids with a structure containing a pyrrolo[1,2-a]azepine group, where the azepine moiety forms a spiro system with oxolane-5-one to give spiro[oxolane-2,9'-pyrrolo[1,2-a]azepine]-5-one. Moreover, another 5-oxooxolane moiety attached to the pyrrole ring.

Organic compounds -> Alkaloids and derivatives -> Stemona alkaloids -> Tuberostemospironine-type alkaloids