COc1c2c3c4c(c(OC)c(=O)c5c(O)cc(OC)c(c6c(OC)cc(O)c(c1=O)c63)c54)C(C(C)O)C2C(C)=O
Rewrite: "Functional confirmatory assay using TK-10 cell line for NCI human tumor growth inhibition (non-molecular target)." Is the molecule assay-effective?