Structure−Activity Relationships for Pyrido-, Imidazo-, Pyrazolo-, Pyrazino-, and Pyrrolophenazinecarboxamides as Topoisomerase-Targeted Anticancer Agents
摘要:
Heterocyclic phenazinecarboxamides were prepared by condensation of aminoheterocycles and 2-halo-3-nitrobenzoic acids, followed by reductive ring closure and amidation. They showed similar inhibition of paired cell lines that underexpressed topo II or overexpressed P-glycoprotein, indicating a non topo II mechanism of cytotoxicity and indifference to P-glycoprotein mediated multidrug resistance. Compounds with a fused five-membered heterocyclic ring were generally less potent than the pyrido[4,3-alpha]phenazines. A 4-methoxypyrido[4,3-alpha]phenazine (IC(50)s 2.5-26 nM) gave modest (ca. 5 day) growth delays in H69/P xenografts with oral dosing.
Structure−Activity Relationships for Pyrido-, Imidazo-, Pyrazolo-, Pyrazino-, and Pyrrolophenazinecarboxamides as Topoisomerase-Targeted Anticancer Agents
摘要:
Heterocyclic phenazinecarboxamides were prepared by condensation of aminoheterocycles and 2-halo-3-nitrobenzoic acids, followed by reductive ring closure and amidation. They showed similar inhibition of paired cell lines that underexpressed topo II or overexpressed P-glycoprotein, indicating a non topo II mechanism of cytotoxicity and indifference to P-glycoprotein mediated multidrug resistance. Compounds with a fused five-membered heterocyclic ring were generally less potent than the pyrido[4,3-alpha]phenazines. A 4-methoxypyrido[4,3-alpha]phenazine (IC(50)s 2.5-26 nM) gave modest (ca. 5 day) growth delays in H69/P xenografts with oral dosing.
Substituted dihydroisoquinolinones and related compounds as potentiators
申请人:Warner-Lambert Company
公开号:US05177075A1
公开(公告)日:1993-01-05
The invention is selected, novel, and known analogs of isoquinolinones of the formula ##STR1## and pharmaceutically acceptable salts thereof; novel pharmaceutical compositions; and a method for enhancing the lethal effects for tumor cells to treatment having DNA damaging activity such as ionizing radiation or with chemotherapeutic agents.
A compound which is a heteroaromatic[a]phenazine carboxamide derivative of formula (I)
1
wherein X is a five- or six-membered heteroaromatic ring which contains one or two nitrogen atoms and which is unsubstituted or substituted by C
1
-C
6
alkyl, hydroxyl or
C
1
-C
6
alkoxy;
Q is C
1
-C
6
alkylene which is unsubstituted or substituted by C
1
-C
6
alkyl which is unsubstituted or substituted by a hydroxy group; and
R
1
and R
2
which are the same or different are each C
1
-C
6
alkyl;
or a pharmaceutically acceptable salt thereof. These compounds are inhibitors of topoisomerase I and II and can be used to treat tumours, including tumours which express MDR.
The present invention provides a compound represented by the following general formula (I) or a salt thereof which has a Syk inhibitory effect (in the formula R1 represents a hydrogen atom or an optionally Ra-substituted C1-C6 alkyl group; A represents a hydrogen atom, an optionally Ra-substituted C1-C8 alkyl group, an optionally Ra-substituted C2-C6 alkenyl group, an optionally Ra-substituted C2-C6 alkynyl group, an optionally Rb-substituted C3-C10 cycloalkyl group, an optionally Rb-substituted C6-C14 aromatic hydrocarbon group, an optionally Rb-substituted 4- to 10-membered unsaturated heterocyclic group, or an optionally Rb-substituted 4-to 10-membered saturated heterocyclic group, or optionally forms a 4- to 10-membered unsaturated heterocyclic ring or a 4- to 10-membered saturated heterocyclic ring together with R1 and the nitrogen atom bonded thereto; R2 represents a hydrogen atom or an optionally Ra-substituted C1-C6 alkyl group; and B represents an optionally Rc-substituted unsaturated heterocyclic group).
TABLETS CONTAINING 4,6-DIAMINO-QUINOLINE-3-CARBONITRILE DERIVATIVES AS CANCER OSAKA THYROID (COT) MODULATORS FOR TREATING CANCER
申请人:GILEAD SCIENCES, INC.
公开号:EP3456717A1
公开(公告)日:2019-03-20
Tablets containing 4,6-diamino-quinoline-3-carbonitrile derivatives as cancer Osaka thyroid (COT) modulators for treating cancer.
含有 4,6-二氨基-喹啉-3-甲腈衍生物的片剂,作为治疗癌症的大阪甲状腺(COT)调节剂。
4,6-DIAMINO-QUINOLINE-3-CARBONITRILE DERIVATIVES AS CANCER OSAKA THYROID (COT) MODULATORS FOR TREATING CROHN'S DISEASE AND ULCERATIVE COLITIS
申请人:Gilead Sciences, Inc.
公开号:EP3896064A1
公开(公告)日:2021-10-20
The present disclosure relates to 4,6-diamino-quinoline-3-carbonitrile derivatives for use as modulators of COT (Cancer Osaka Thyroid) in methods of treating Crohn's disease and ulcerative colitis.