摘要:
Compounds useful as cytotoxic agents are selected from the group consisting of compounds of Formula I and compounds of Formula II: wherein: R1, R2, R3 and R4 are each independently selected from the group consisting of: hydrogen, alkyl, carboxy, alkoxy, hydroxyalkyl, alkylcarbonyl; alkylcarbonyloxy; alkyl substituted with alkylcarbonyloxy, thiophenylcarbonyl; nitro and cyano; thiophenyl and thiophenylthiophenyl, each of which may be unsubstituted or substituted with alkyl, carboxy, alkoxy, hydroxyalkyl, alkylcarbonyl; alkylcarbonyloxy; alkyl substituted with alkylcarbonyloxy, nitro or cyano; subject to the proviso that at least one of R1, R2, R3 and R4 is not hydrogen; A1 and A2 are each selected from the group consisting of: ═O, alkyl, alkoxy, and alkylcarbonyloxy; and the pharmaceutically acceptable salts thereof. When A1 and A2 are ═O, the center ring has only two, and not three, double bonds.
摘要:
The invention provides 1,4-naphthoquinone compounds and a method for inhibiting tumor cell growth in a subject by administering such compounds. The compounds are represented by the structures: where R1 is lower alkyl, halogenated lower alkyl, phenyl, benzyl, phenethyl, or —(CH2)mCOOX, where m is 2 or 3 and X is H, methyl, or ethyl; R2 is halo or NHY, where Y is hydrogen, loweralkyl, halogenated lower alkyl, hydroxylated lower alkyl, lower dialkylaminoalkyl, phenyl, benzyl, or phenethyl; R3 is lower alkyl, halogenated lower alkyl, phenyl, benzyl, phenethyl, or —(CH2)mCOOX, where m and X are as defined for R1 above; and R4 is hydrogen, lower alkyl, lower aminoalkyl, halogenated lower alkyl, phenyl, benzyl, or phenethyl.
摘要:
A novel antiproliferative drug and methods are disclosed. The drug has the general structural formula: ##STR1## where R1=OR.sub.1 ', SR.sub.1 ', or N(R.sub.1 'R.sub.1 ").sub.2, where R.sub.1 ' and R.sub.1 " are H or lower alkyl groups, and R.sub.2 is an acylamino, or aroylamino group. The compound is useful for inhibiting cell proliferation in drug-resistant tumor cells. Also disclosed is a method of chemical converting a colchicine derivative to form an active inhibitor of DNA topisomerase II.
摘要:
A compound of Formula I is disclosed as follows: or a pharmaceutically acceptable salt, prodrug, solvate, or metabolite thereof, wherein R is hydrogen, P(═O)(OH)2, P(═O)(O(C1-C18)alkylene(C6-C20)aryl)2, P(═O)(OH)(OM), P(═O)(OM)2, P═O(O2M), S(═O)(OH)2, S(═O)(O(C1-C18)alkylene(C6-C20)aryl)2, S(═O)(OH)(OM), S(═O)(OM)2; M is a monovalent or divalent metal ion, or alkylammonium ion; W is (C6-C20)aryl, (C6-C20)heteroaryl, (C1-C18)alkyl(C6-C20)aryl, (C1-C18)alkyl(C6-C20)heteroaryl, hydroxy(C6-C20)aryl, hydroxy(C6-C20)heteroaryl, (C1-C18)alkoxy(C6-C20)aryl, (C1-C18)alkoxy(C6-C20)heteroaryl, (C1-C18)alkylenedioxy(C6-C20)aryl, (C1-C18)alkylenedioxy(C6-C20)heteroaryl, halo(C6-C20)aryl, halo(C6-C20)heteroaryl, (C1-C18)alkylamino(C6-C20)aryl, (C1-C18)alkylamino(C6-C20)heteroaryl, (C1-C18)cycloalkylamino(C6-C20)aryl, or (C1-C18)cycloalkylamino(C6-C20)heteroaryl, and their OR8 substutes; R5 is (C1-C18alkoxy, hydrogen, hydroxyl, O—(C1-C18)alkyl(C6-C20)aryl, halo or OR8, or R5 and R6 are (C1-C18)dioxy provided that R7 is hydrogen; R6 is hydroxyl, O—(C1-C18)alkyl(C6-C20)aryl, halo or ORR, (C1-C18)alkoxy, (C1-C18)alkylamino, or (C1-C18)cycloalkylamino, or R6 and R7 are (C1-C18)dioxy provided that R5 is hydrogen; R7 is hydrogen, halo or OR8, hydroxyl, or O—(C1-C18)alkyl(C6-C20)aryl; and R8 is P(═O)(OH)2, P(═O)(O(C1-C18)alkyl(C6-C20)aryl)2, P(═O)(OH)(OM), or P(═O)(OM)2, P═O(O2M).
摘要:
A pharmaceutical composition having a cytotoxic effect to a cancer cell is provided. The pharmaceutical composition includes a flavonoid compound having a formula as wherein B ring is a 4-oxo-cyclohexa-2,5-dienyl group, and any one of R1-R12 is one selected from a group consisting of hydrogen group, hydroxyl group, C1-C20 alkyl group, C1-C20 ether group, C1-C20 ester group, carboxyl group, halogen and sugar. The flavonoid compound is obtained from a chemical method being one of a total synthesis method and a semi-synthesis method.
摘要:
The present invention relates to compounds capable of acting as androgen receptor antagonists, pharmaceutical formulations containing the same, and methods of use thereof. Such uses include, but are not limited to, use as antitumor agents, particularly for the treatment of cancers such as colon, skin and prostate cancer and to induce androgen receptor antagonist activity in a subject afflicted with an androgen-related affliction. Examples of androgen-related afflictions include, but are not limited to, baldness, hirsutism, behavioral disorders, acne, and uninhibited spermatogenesis wherein inhibition of spermatogenesis is so desired.
摘要:
Compounds of Formulas I-II are described, along with methods of using such compounds for the treatment of cancer and pharmaceutical formulations thereof.
摘要:
A pharmaceutical composition having a cytotoxic effect to a cancer cell and a method for the same are provided. The pharmaceutical composition comprises a flavonoid compound having at least one of the following formulas: wherein B ring is a 4-oxo-cyclohexa-2,5-dienyl group, and any one of R1-R12 is one selected from a group consisting of hydrogen group, hydroxyl group, C1-C20 alkyl group, C1-C20 ether group, C1-C20 ester group, carboxyl group, halogen and sugar.
摘要:
The present invention relates to compounds capable of acting as androgen receptor antagonists, pharmaceutical formulations containing the same, and methods of use thereof. Such uses include, but are not limited to, use as antitumor agents, particularly for the treatment of cancers such as colon, skin and prostate cancer and to induce androgen receptor antagonist activity in a subject afflicted with an androgen-related affliction. Examples of androgen-related afflictions include, but are not limited to, baldness, hirsutism, behavioral disorders, acne, and uninhibited spermatogenesis wherein inhibition of spermatogenesis is so desired.
摘要:
The present invention relates to compounds capable of acting as androgen receptor antagonists, pharmaceutical formulations containing the same, and methods of use thereof. Such uses include, but are not limited to, use as antitumor agents, particularly for the treatment of cancers such as colon, skin and prostate cancer and to induce androgen receptor antagonist activity in a subject afflicted with an androgen-related affliction. Examples of androgen-related afflictions include, but are not limited to, baldness, hirsutism, behavioral disorders, acne, and uninhibited spermatogenesis wherein inhibition of spermatogenesis is so desired.