Cryptomoscatone D2, a natural product isolated and purified from the branch and stem bark of Cryptocarya moschata, Lauraceae, is a highly efficacious inhibitor of the G(2) checkpoint, and G(2) checkpoint inhibitors can force cells arrested in G(2) phase by DNA damage to enter mitosis.

Cryptofolione, a natural product isolated and purified from the fruits of Cryptocarya alba, acts as highly efficacious inhibitors of the G(2) checkpoint, G(2) checkpoint inhibitor can force cells arrested in G(2) phase by DNA damage to enter mitosis, and shows moderate cytotoxicity in both macrophages and T.

Obolactone is a natural product isolated and purified from the fruits and the trunk bark of Cryptocarya obovata, displaying significant activity in vitro cytotoxic assays against the KB cell line.