
Keywords: Podophyllotoxin (PubChem CID: 10607); 4â²-Demethylepipodophyllotoxin (PubChem CID: 122797); Etoposide (PubChem CID: 36462); 4-(4-Methylpiperazinomethyl)benzoic acid (PubChem CID: 736532); Tert-butyl 4-(chloromethyl) benzoate (PubChem CID: 18959012); N,N,