High throughput synthesis of 2,3,6-trisubstituted-5,6-dihydroimidazo[2,1-b]thiazole derivatives
作者:Yangmei Li、Marc Giulianotti、Richard A. Houghten
DOI:10.1016/j.tetlet.2010.12.006
日期:2011.2
A facile approach to the synthesis of 2,3,6-trisubstituted-5,6-dihydroimidazo[2,1-b]thiazole was reported. A resin bound cyclic thiourea was formed by the treatment of a resin bound diamine with 1,1′-thiocarbonyldiimidazole, and then reacted with a α-haloketone to generate a resin bound isothiourea. HF treatment of the resin bound isothiourea resulted in the cleavage of the product and simultaneous
报道了一种简便的合成 2,3,6-三取代-5,6-二氢咪唑并[2,1- b ]噻唑的方法。通过用1,1'-硫代羰基二咪唑处理树脂结合的二胺形成树脂结合的环状硫脲,然后与α-卤代酮反应生成树脂结合的异硫脲。树脂结合异硫脲的 HF 处理导致产物裂解并同时形成烯胺键。这导致以高产率和纯度形成2,3,6-三取代-5,6-二氢咪唑并[2,1- b ]噻唑。
[EN] N-SUBSTITUTED PIPERIDINYL-IMIDAZOPYRIDINE COMPOUNDS AS 5-HT4 RECEPTOR MODULATORS<br/>[FR] COMPOSES DE PIPERIDINYL-IMIDAZOPYRIDINE N-SUBSTITUES UTILISES COMME MODULATEURS DU RECEPTEUR 5-HT4
申请人:PFIZER PHARMA
公开号:WO2004026868A1
公开(公告)日:2004-04-01
This invention provides a compound of the formula (I): wherein Rl represents a hydrogen atom or a halogen atom; R2 represents a hydrogen atom, etc.; R3 represents an alkyl group having from 1 to 10 carbon atoms; said alkyl group in R3 is substituted by at least one substituent selected from the group consisting of substituents α ; said substituents α are selected from the group consisting of aryl groups, hydroxy groups, oxo groups, etc.; said aryl groups have 6 to 10 carbon atoms; said aryl groups are unsubstituted or substituted by at least one alkyl group having from 1 to 6 carbon atoms; said heterocyclic groups and heterocyclic moiety in heterocycliccarbonyl groups are 5- to 10-membered cyclic groups containing from 1 to 4 heteroatoms selected from the group consisting of nitrogen atoms, etc.; or a pharmaceutically acceptable amide of such compound, or a pharmaceutically acceptable ester of such compound, and pharmaceutically acceptable salts thereof. These compounds have 5-HT4 receptor binding activity, and thus are useful for the treatment of gastroesophageal reflux disease, non-ulcer dyspepsia, functional dyspepsia, irritable bowel syndrome or the like in mammalian, especially humans. This invention also provides a pharmaceutical composition comprising the above compound.
Addition regioselective d'enolates de cetones aux α-enones
作者:J. Bertrand、L. Gormchon、P. Mahoni
DOI:10.1016/0040-4020(84)85094-2
日期:1984.1
Regio and stereochemistry in the addition of preformed magnesium and lithium ketone enolates (1 to 8) to α-enones (10 and 11) have been examined. When the substitution degree of the enolate is increased the formation of δ-diketone is favoured; nevertheless a good efficiency in the synthesis of the γ-ethylenic β-ketols (1-2 addition) is obtained via bromomagnesium enolates (EMgX) under kinetic conditions
SUBSTITUTED BENZIMDAZOLE DERIVATIVES USEFUL AS TRPM8 RECEPTOR MODULATORS
申请人:PLAYER Mark R.
公开号:US20120202856A1
公开(公告)日:2012-08-09
The present invention is directed to benzimidazole derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by TRP M8, including for example, inflammatory pain, inflammatory hyperalgesia, inflammatory hypersensitivity condition, neuropathic pain, neuropathic cold allodynia, inflammatory somatic hyperalgesia, inflammatory visceral hyperalgesia, cardiovascular disease aggravated by cold and pulmonary disease aggravated by cold.