4671 Podofilox A lignan (lignans) found in podophyllin resin from the roots of podophyllum plants. It is a potent spindle poison, toxic if taken internally, and has been used as a cathartic. It is very irritating to skin and mucous membranes, has keratolytic actions, has been used to treat warts and keratoses, and may have antineoplastic properties, as do some of its congeners and derivatives. 477-47-4 10607 C22H22O8 White powder. 228°C 100 mg/L (at 25°C) Topical application of 0.05 mL of 0.5% podofilox solution to external genitalia did not result in detectable serum levels. Applications of 0.1 to 1.5 mL resulted in peak serum levels of 1 to 17 ng/mL one to two hours after application. Etoposide, a semisynthetic derivative of podofilox, induces DNA breakage through its inhibition of topoisomerase II. The drug is most active in the late S and early G2 phases of the cell cycle. Teniposide is an analog with very similar pharmacologic characteristics. Podofilox derivatives display binding activity to the enzyme topoisomerase II during the late S and early G2 stage. For instance, etoposide binds and stabilizes the temporary break caused by the enzyme, disrupts the reparation of the break through which the double-stranded DNA passes, and consequently stops DNA unwinding and replication. Mutants resistant to either podofilox, or to its topoisomerase II inhibitory derivatives such as etoposide (VP-16), have been described in Chinese hamster cells. The mutually exclusive cross-resistance patterns of these mutants provide a highly specific mean to distinguish the two kinds of podofilox derivatives. Mutant Chinese hamster cells resistant to podofilox are affected in a protein P1 that was later identified as the mammalian HSP60 or chaperonin protein. (Wikipedia) Half Life: 1.0 to 4.5 hours. No indication of carcinogenicity to humans (not listed by IARC). For treatment of external genital warts (<i>Condyloma acuminatum</i>). 2014-09-05T17:14:40Z 2026-04-06T02:14:12Z Podofilox C10874 50305 DB01179 POD true [H][C@]12COC(=O)[C@]1([H])[C@H](C1=CC(OC)=C(OC)C(OC)=C1)C1=CC3=C(OCO3)C=C1[C@@H]2O C22H22O8 InChI=1S/C22H22O8/c1-25-16-4-10(5-17(26-2)21(16)27-3)18-11-6-14-15(30-9-29-14)7-12(11)20(23)13-8-28-22(24)19(13)18/h4-7,13,18-20,23H,8-9H2,1-3H3/t13-,18+,19-,20-/m0/s1 YJGVMLPVUAXIQN-XVVDYKMHSA-N 414.4053 414.13146768 Exogenous Solid 1.5 HMDB15310 CHEMBL61 10162 CHEM003577 DTXSID3045645 NS00094687 (10R,11R,15R,16R)-16-hydroxy-10-(3,4,5-trimethoxyphenyl)-4,6,13-trioxatetracyclo[7.7.0.0³,⁷.0¹¹,¹⁵]hexadeca-1,3(7),8-trien-12-one