<unk> s are a group of atropisomeric alkaloid which have been found to be HIV viral replication inhibitors in vitro. It was discovered in the leaves of Ancistrocladus korupensis. There are three<unk> s represented as A, B, and C; however,<unk>  B is the most active against the NID-DZ strain of HIV-2.
Michellamine
Chlorotrianisene
Phendimetrazine
Bucinnazine
Meptazinol
Cloroqualone
Desmethylchlorotrianisene
Phenylsilatrane