Solid-phase Suzuki cross-coupling reactions using a phosphine ligand based on a phospha-adamantane framework
摘要:
The use of a catalyst system based on Pd(2)dba(3.)CHCl(3) and 1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane allows for Suzuki coupling aryl halides with an array of boronic acids on a solid-phase platform. The reactions can be carried out at room temperature with low palladium loadings in high yields. (C) 2004 Elsevier Ltd. All rights reserved.
A melanin-concentrating hormone antagonist comprising a compound of the formula:
1
wherein R is hydrogen atom or a cyclic group which may be substituted; X is a bond or a spacer having a main chain of 1 to 10 atoms; Y is a spacer having a main chain of 1 to 6 atoms; ring A is benzene ring which may be further substituted; ring B is a 5- to 9-membered nitrogen-containing non-aromatic heterocyclic ring which may be further substituted; R
1
and R
2
are the same or different and are hydrogen atom, a hydrocarbon group which may be substituted or a heterocyclic group which may be substituted; or R
1
and R
2
, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R
2
, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or a salt thereof is useful as a preventive or therapeutic agent for obesity, etc.
A compound, which has a melanin-concentrating hormone antagonistic action and useful as an agent for preventing or treating obesity, and which is represented by the formula:
wherein Ar is a cyclic group optionally having substituent(s); X is a bond or a spacer having a main chain of 1 to 6 atoms;
R
1
and R
2
are the same or different and each is a hydrogen atom or a hydrocarbon group optionally having substituent(s), or R
1
and R
2
may form, together with the adjacent nitrogen atom, a nitrogen-containing heterocycle optionally having substituent(s); Y is a divalent hydrocarbon group optionally having substituent(s) (except CO);
R
3
is a hydrogen atom or a hydrocarbon group optionally having substituent(s); and ring A and ring B
may further have substituents, and when ring B further has a substituent, the substituent may be linked to R
1
to form a ring, or a salt thereof, or a prodrug thereof, is provided.
A melanin-concentrating hormone antagonist comprising a compound of the formula:
wherein R is hydrogen atom or a cyclic group which may be substituted; X is a bond or a spacer having a main chain of 1 to 10 atoms; Y is a spacer having a main chain of 1 to 6 atoms; ring A is benzene ring which may be further substituted; ring B is a 5- to 9-membered nitrogen-containing non-aromatic heterocyclic ring which may be further substituted; R1 and R2 are the same or different and are hydrogen atom, a hydrocarbon group which may be substituted or a heterocyclic group which may be substituted; or R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or a salt thereof is useful as a preventive or therapeutic agent for obesity, etc.
一种黑色素浓缩激素拮抗剂,包括式中化合物:
其中 R 是氢原子或可被取代的环状基团;X 是主链为 1 至 10 个原子的键或间隔物;Y 是主链为 1 至 6 个原子的间隔物;环 A 是可被进一步取代的苯环;环 B 是可被进一步取代的 5 至 9 元含氮非芳香杂环;R1和R2相同或不同,且为氢原子、可被取代的烃基或可被取代的杂环基;或R1和R2连同相邻的氮原子可形成可被取代的含氮杂环;或R2连同相邻的氮原子和Y可形成可被取代的含氮杂环;或其盐可用作肥胖症等的预防或治疗剂。
QUINOLINE COMPOUND
申请人:Takeda Chemical Industries, Ltd.
公开号:EP1447402A1
公开(公告)日:2004-08-18
A compound, which has a melanin-concentrating hormone antagonistic action and useful as an agent for preventing or treating obesity, and which is represented by the formula:
wherein
Aris a cyclic group optionally having substituent(s) ;
Xis a bond or a spacer having a main chain of 1 to 6 atoms;
R1 and R2are the same or different and each is a hydrogen atom or a hydrocarbon group optionally having substituent(s), or R1 and R2 may form, together with the adjacent nitrogen atom, a nitrogen-containing heterocycle optionally having substituent(s);
Yis a divalent hydrocarbon group optionally having substituent(s) (except CO);
R3is a hydrogen atom or a hydrocarbon group optionally having substituent(s); and
ring A and ring Bmay further have substituents, and when ring B further has a substituent, the substituent may be linked to R1 to form a ring,
or a salt thereof, or a prodrug thereof, is provided.
一种化合物,具有拮抗黑色素浓缩激素的作用,可作为预防或治疗肥胖症的药物,由式表示:
式中
Ar 是一个环状基团,可选择具有取代基;
X 是主链为 1 至 6 个原子的键或间隔物;
R1 和 R2 相同或不同,各自为氢原子或任选具有取代基的烃基,或 R1 和 R2 可与邻近的氮原子一起形成任选具有取代基的含氮杂环;
Y 是可选具有取代基的二价烃基(CO 除外);
R3 是氢原子或可选具有取代基的烃基;以及
环 A 和环 B 可进一步具有取代基,当环 B 进一步具有取代基时,该取代基可与 R1 连接形成一个环、
或其盐或其原药。
Melanin-Concentrating Hormone Receptor 1 Antagonists. Synthesis and Structure–Activity Relationships of Novel 3-(Aminomethyl)quinolines
It was found that 3-(aminomethyl)quinoline derivatives showed high binding affinities for melanin-concentrating hormone receptor 1 (MCHR1) with reduced affinity for serotonin receptor 2c (5-HT2c) when the dihydronaphthalene nucleus of compound 1 (human MCHR1, IC50 = 1.9 nM; human 5-HT2c receptor, IC50 = 0.53 nM) was replaced by other bicyclic core scaffolds. Among the synthesized compounds, 8-methylquinoline derivative 5v especially showed high binding affinity (IC50 = 0.54 nM), potent in vitro antagonistic activity (IC50 = 2.8 nM) for MCHR1, and negligible affinity for 5-HT2c receptor (IC50 > 1000 nM). Oral administration of 5v significantly and dose-dependently suppressed nocturnal food intake in diet-induced obese rats and did not affect food intake in MCHR1-deficient mice. These results and rat pharmacokinetic study findings suggested that compound 5v is a highly potent, orally bioavailable, and centrally acting nonpeptide MCHR1 antagonist.