Abstract: The invention provides compounds of formula I: wherein R1 to R5 have any of the values defined in the specification, as well as pharmaceutically acceptable salts of the compounds, pharmaceutical compositions comprising the compounds, and methods of using the compounds, compositions, or salts to treat cancer. In embodiments, R4 and R5 taken together can be a 3, 4, or 5 membered saturated or unsaturated chain comprising members selected from the group consisting of non-peroxide oxygen, sulfur, N(X), and carbon, optionally substituted by oxo; wherein each X is independently absent or is H, O, (C1–C4)alkyl, phenyl or benzyl; and wherein at least one of the chain members is an N—H group.

Abstract: The invention provides compounds of formula I: wherein R1-R8 and A-G have any of the meanings defined in the specification and their pharmaceutically acceptable salts. The invention also provides pharmaceutical compositions comprising a compound of formula I, processes for preparing compounds of formula I, intermediates useful for preparing compounds of formula I, and therapeutic methods for treating cancer using compounds of formula I.

Abstract: The invention provides compounds of formula I: 1

Abstract: The invention provides compounds of formula I: wherein R1 to R5 have any of the values defined in the specification, as well as pharmaceutically acceptable salts of the compounds, pharmaceutical compositions comprising the compounds, and methods of using the compounds, compositions, or salts to treat cancer. In embodiments, R4 and R5 taken together can be a 3, 4, or 5 membered saturated or unsaturated chain comprising members selected from the group consisting of non-peroxide oxygen, sulfur, N(X), and carbon, optionally substituted by oxo; wherein each X is independently absent or is H, 0, (C1-C4)alkyl, phenyl or benzyl; and wherein at least one of the chain members is an N—H group.

Abstract: The invention provides compounds of formula I: 1

Abstract: The present invention provides compounds of formula I: wherein the R substituents and atoms X and Y are as defined in specification. The present invention also provides pharmaceutical compositions and methods of inhibiting cancer cell growth.

Abstract: The invention provides compounds of formula I: 1

Abstract: The invention provides a topoisomerase poison of formula I: wherein R1-R8 have any of the meanings defined in the specification, or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions comprising a compound of formula I or a salt thereof, intermediates useful for preparing a compound of formula I, and therapeutic methods comprising administering a compound of formula I or a salt thereof.

Abstract: The invention provides a topoisomerase poison of formula I: 1

Abstract: The invention provides a topoisomerase poison of formula I: wherein R1-R8 have any of the meanings defined in the specification, or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions comprising a compound of formula I or a salt thereof, intermediates useful for preparing a compound of formula I, and therapeutic methods comprising administering a compound of formula I or a salt thereof.

Abstract: The invention provides compounds of formula I: whereinR.sub.1 -R.sub.8 and X and Y have any of the meanings defined in the specification and their pharmaceutically acceptable salts. The invention also provides pharmaceutical compositions comprising a compound of formula I, processes for preparing compounds of formula I, intermediates useful for preparing compounds of formula I, and therapeutic methods for treating cancer using compounds of formula I.

Abstract: The present invention provides protoberberine alkaloid derivatives useful as anticancer agents, and methods of use thereof. The invention also provides protoberberine derivatives useful as topoisomerase inhibitors. The invention further provides coralyne and nitidine derivatives which are topoisomerase I-targeted therapeutics effective against camptothecin resistant cancer cells, and are especially effective against CNS tumors.

Abstract: The invention provides a topoisomerase poison of formula I: ##STR1## wherein R.sub.1 -R.sub.8 have any of the meanings defined in the specification, or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions comprising a compound of formula I or a salt thereof, intermediates useful for preparing a compound of formula I, and therapeutic methods comprising administering a compound of formula I or a salt thereof.

Abstract: The present invention provides compounds of formula (I): ##STR1## wherein R.sub.1 -R.sub.7, W, X, Y, and Z have any of the values defined in the specification, and pharmaceutically acceptable salt thereof, that are are useful as anticancer agents. Also disclosed are pharmaceutical compositions comprising one or more compounds of formula I, processes for preparing compounds of formula I, and intermediates useful for preparing compounds of formula I.

Abstract: The present invention provides anti-neoplastic topoisomerase I inhibitors of the formula: ##STR1## wherein Ar is (C.sub.6 -C.sub. 12)aryl or (6- to 12-membered) heteroaryl comprising 1-3 N, S or non-peroxide O, wherein N is unsubstituted or is substituted with (C.sub.1 -C.sub.4)alkyl; X is H, CN, CHO, OH, acetyl, CF.sub.3, OCH.sub.3, NO.sub.2 or NH.sub.2 ; each Y is individually H, (C.sub.1 -C.sub.4)alkyl or aralkyl; Y' is H or (C.sub.1 -C.sub.4)alkyl; n is 0 or 1; or a pharmaceutically acceptable salt therein.

Abstract: The present invention provides anti-neoplastic topoisomerase I inhibitors of the formula: ##STR1## wherein Ar is (C.sub.6 -C.sub.12)aryl or (6- to 12-membered) heteroaryl comprising 1-3 N, S or non-peroxide O, wherein N is unsubstituted or is substituted with (C.sub.1 -C.sub.4)alkyl; X is H, CN, CHO, OH, acetyl, CF.sub.3, OCH.sub.3, NO.sub.2 or NH.sub.2 ; each Y is individually H, (C.sub.1 -C.sub.4)alkyl or aralkyl; Y' is H or (C.sub.1 -C.sub.4)alkyl; n is 0 or 1; or a pharmaceutically acceptable salt therein.

Abstract: The present invention provides a method of treatment of fungal infection with an antifungal topoisomerase I inhibitor of the formula: ##STR1## wherein Ar is (C.sub.6 -C.sub.12)aryl, a (5- to 12-membered) heteroaryl comprising 1-3 N, S or non-peroxide O, wherein N is unsubstituted or is substituted with H, (C.sub.1 -C.sub.4)alkyl or benzyl; or benzo; X is H, CN, CHO, OH, acetyl, CF.sub.3, O(C.sub.1 -C.sub.4)alkyl, NO.sub.2, NH.sub.2, halogen or halo-(C.sub.1 -C.sub.4)alkyl; each Y is individually H, (C.sub.1 -C.sub.4)alkyl or aralkyl; Y' is H or (C.sub.1 -C.sub.4)alkyl; n is 0 or 1; and each Z is individually H, (C.sub.1 -C.sub.4)alkyl, halogen or halo(C.sub.1 -C.sub.4)alkyl; or a pharmaceutically acceptable salt thereof.

Abstract: The present invention provides anti-neoplastic topoisomerase I inhibitors of the formula: ##STR1## wherein Ar is (C.sub.6 -C.sub.12)aryl or (5- to 12-membered) heteroaryl comprising 1-3 N, S or non-peroxide O, wherein N is unsubstituted or is substituted with (C.sub.1 -C.sub.4)alkyl; X is H, CN, CHO, OH, acetyl, CF.sub.3, O(C.sub.1 -C.sub.4)alkyl, NO.sub.2, NH.sub.2, halogen or halo-(C.sub.1 -C.sub.4)alkyl; each Y is individually H, (C.sub.1 -C.sub.4)alkyl or aralkyl; Y' is H or (C.sub.1 -C.sub.4)alkyl; n is 0 or 1; and each Z is individually H, (C.sub.1 -C.sub.4)alkyl, halogen or halo(C.sub.1 -C.sub.4)alkyl; or a pharmaceutically acceptable salt therein.