23012-30-8Relevant academic research and scientific papers
Hypervalent iodane mediated reactions of: N -acetyl enamines for the synthesis of oxazoles and imidazoles
Xu, Kang,Yang, Ruiqi,Yang, Shuang,Jiang, Cheng,Ding, Zhenhua
, p. 8977 - 8981 (2019/10/28)
A hypervalent iodane reagent used for the intramolecular cyclization of N-acetyl enamines and intermolecular cyclocondensation of enamines and nitriles was investigated. The reaction was performed under mild conditions and gave oxazoles and imidazoles, respectively, in moderate to excellent yields. This transformation exhibits good reactivity, selectivity and functional group tolerance. The selectivity of the intra- or intermolecular reaction is dependent on the structure of N-acetyl enamines.
Pyrazole compounds and their use as antidiabetes agents
-
, (2008/06/13)
The present invention provides a pyrazole compound that has liver glycogen phosphorylase inhibitory activity and is useful as a therapeutic or prophylactic agent for diabetes, the pyrazole compound represented by the following general formula (I): wherein Ring Q represents an aryl or heteroaromatic group, R1 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group or a C1-6 alkoxy group, R2 represents a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group or an azido group, R3 represents a halogen atom, a hydroxyl group, a C1-6 alkyl group, a halo C1-6 alkyl group, a C1-6 alkoxy group, an azido group, an amino group, an acylamino group or a C1-6 alkylsulfonylamino group, R4 and R5 are identical with or different from each other and represent a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group, a C3-8 cycloalkyl group, a substituted or unsubstituted saturated heterocyclic group, a substituted or unsubstituted aryl group, a C7-14 aralkyl group, a heteroaromatic group, or the like, or a pharmacologically acceptable salt thereof.
Synthesis of furanyl and oxazolyl N-substituted piperidine and imidazoline salts as potential agonists of M1 muscarinic receptors
Aguado, Andreina,Boulos, John,Carreras, Anladys,Montoya, Angelica,Rodriquez, Judith
, p. 1517 - 1520 (2008/09/18)
(Chemical Equation Presented) Furanyl and oxazolyl N-substituted imidazoline salts were prepared by reacting furanyl and oxazolyl esters with ethylenediamine and trimethyl aluminum, followed by the addition of methyl iodide or hydrogen chloride. The piperidinium salts were prepared by treating furanyl and oxazolyl chlorides with piperidine base, followed by the addition of methyl iodide or hydrogen chloride.
Synthesis of oxazolyl-substituted morpholinium salts
Boulos, John,Stujenske, Christina
, p. 443 - 445 (2007/10/03)
Morpholinium salts coupled to oxazolyl moieties have been synthesized via nucleophilic substitution of a series of oxazolyl chlorides with morpholine. The oxazole moieties were first synthesized and then coupled with morpholine. The corresponding hydrochloride and methyl iodide salts were obtained, purified, characterized and then tested for muscarinic receptor binding affinity. Biological test results from MDS Pharma Services revealed no significant muscarinic receptor affinity.
Gonadotropin releasing hormone receptor antagonists
-
Page/Page column 22, (2010/02/15)
The present invention relates to Gonadotropin Releasing Hormone (“GnRH”) (also known as Leutinizing Hormone Releasing Hormone) receptor antagonists.
PYRAZOLE COMPOUND AND THERAPEUTIC AGENT FOR DIABETES COMPRISING THE SAME
-
Page/Page column 255, (2008/06/13)
A pyrazole compound represented by the general formula (I) or a salt thereof which has a hepatic glycogen phosphorylase inhibitory activity and therefore is useful as a therapeutic or prophylactic agent for diabetes or a pharmacologically salt thereof : wherein the ring Q represents an aryl group or an aromatic heterocyclic group; R1 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group or a C1-6 alkoxy group; R2 represents a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group or an azide group; R3 represents a halogen atom, a hydroxyl group, a C1-6 alkyl group, a halo-C1-6 alkyl group, a C1-6 alkoxy group, an azide group, an amino group, an acylamino group or a C1-6 alkylsulfonylamino group; R4 and R5 independently represent a hydrogen atom, a C1-6 alkyl group which may be substituted, a a C3-8 cycloalkyl group, a saturated heterocyclic group which may be substituted, an aryl group which may be substituted, a C7-14 aralkyl group, an aromatic heterocyclic group or the like.
Efficient synthesis of multi-substituted oxazoles under solvent-free microwave irradiation
Lee, Jong Chan,Choi, Hyun Jung,Lee, Yong Chan
, p. 123 - 125 (2007/10/03)
A new and efficient method for the synthesis of multi-substituted oxazoles from various carbonyl compounds has been developed using sequential treatment of carbonyl compounds with HDNIB and amides such as acetamide or benzamide under solvent-free microwave irradiation conditions.
Synthesis of oxazolyl- and furanyl-substituted imidazole hydrochlorides and methiodides
Boulos, John,Schulman, Jerome
, p. 859 - 863 (2007/10/03)
Oxazolyl-5- and furanyl-2-substituted imidazoles have been synthesized by coupling the two ring systems via the dipolar cycloadditon of tosyl methyl isocyanide to the corresponding oxazolyl and furanyl aldimines in basic media. These substitute oxazolyl and furanylimidazole bases obtained in this manner were then subjected to hydrogen chloride gas and to methyl iodide to form the corresponding hydrochlorides and methyliodides, respectively. All compounds were purified, characterized and then tested for muscarinic binding affinity. Biological test results revealed low muscarinic receptor affinity and selectivity.
