GB0117402D0 — New antitumoral derivatives of et-743

USPTO Abstract

The present invention provides a compound of the general formula Ia : wherein R 2 , R 4 , R 5 are each independently selected of H, C(=O)R', C(=O)OR', P=O(OR') 2 , substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl; wherein R 1 is C(=O)R" or C(=O)OR", and R" is an optionally substituted alkyl with at least 4 carbon atoms or an optionally substituted alkenyl, wherein the optional substituents are selected from aryl or heterocyclic; or R" is derived from an optionally protected amino acid; wherein R 6 and R 7 are both =O and the dotted lines indicate a quinone ring, or R 6 is -OR 3 , where R 3 is H, C(=O)R', C(=O)OR' substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, R 7 is H, and the dotted lines indicate a phenyl ring; wherein X 2 , X 3 , X 4 , X 5 , X 6 are independently selected of H, OH, OR', SH, SR', SOR', SO 2 R', C(=O)R', C(=O)OR', NO 2 , NH 2 , NHR', N(R') 2 , NHC(=O)R', CN, halogen, substituted or unsubstituted C 1 -C 24 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaromatic; wherein X 1 is independently selected of OH, CN, (=O), or H; wherein each of the R' groups is independently selected from the group consisting of H, OH, NO 2 , NH 2 , SH, CN, halogen, C(=O)H, C(=O)CH 3 , CO 2 H, PO(OR') 2 , substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl; wherein when R 2 , R 3 , R 4 , and R 5 are substituted, the substituents are each independently selected from the group consisting of OH, OR', SH, SR', SOR', SO 2 R', C(=O)R', C(=O)OR', NO 2 , NH 2 , NHR', N(R') 2 , NHC(O)R', CN, halogen, =O, substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclic.