نتایج جستجو برای: dihydropyridine

تعداد نتایج: 2508  

Journal: :Molecules 2011
Hortensia Rodríguez Osnieski Martin Margarita Suarez Nazario Martín Fernando Albericio

Here we describe the efficient synthesis of alkyl 4-arylsubstituted-6-chloro-5-formyl-2-methyl-1,4-dihydropyridine-3-carboxylates and 4-arylsubstituted-4,7-dihydro-furo[3,4-b]pyridine-2,5(1H,3H)-diones via microwave-accelerated reaction of alkyl 4-arylsubstituted-2-methyl-6-oxo-1,4,5,6-tetrahydro-3-pyridinecarboxylates with the appropriate reagents. This eco-friendly approach to these valuable ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1991
A Grove J M Tomich M Montal

A protein that imitates the sequence of a highly conserved segment predicted to line the pore of dihydropyridine-sensitive L-type calcium channels was designed and synthesized. Single-channel conductance properties were studied in planar lipid bilayers. The synthetic protein emulates the ionic conductance, ionic selectivity, and pharmacological properties of the authentic calcium channel, inclu...

Journal: :Trends in neurosciences 1988
K P Campbell A T Leung A H Sharp

Calcium channels are known to exist in muscle, neuronal and secretory cells. The 1,4-dihydropyridines are potent blockers of L-type Ca channels, and have been used as specific probes in the study of dihydropyridine-sensitive Ca channels. The receptor for the 1,4-dihydropyridines has been purified from skeletal muscle in order to characterize the biochemistry and molecular biology of the dihydro...

Journal: :Angewandte Chemie 2023

Axially enantioselective binuclear gold(I) catalysts fly as swallowtail butterflies around a mechanical hand providing chiral environment. The gold microchip on the symbolizes crucial role of catalysis in alkyne activation. Using gold-catalyzed condensation amine and diyne-ene, first example 1,2-dihydropyridine synthesis through formal [3+2+1] fashion is reported by Xin Hong, Xiaodong Shi et al...

2009
Hoong-Kun Fun Jia Hao Goh B. Palakshi Reddy S. Sarveswari V. Vijayakumar

In the title compound, C(21)H(27)NO(5), the dihydropyridine ring adopts a boat conformation. The ethoxy-phenyl ring is oriented approximately perpendicular to the planar part of the dihydropyridine ring, making a dihedral angle of 89.45 (6)°. An intra-molecular C-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal structure, neighbouring mol-ecules are linked into chains along the a ...

2013
Mark C Bagley Vincenzo Fusillo Robert L Jenkins M Caterina Lubinu Christopher Mason

The Bohlmann-Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann-Rahtz reaction, the use of a Brønsted acid catalyst allows Michael addition and cyclodehydration to be carried out in a single step without isolation of intermediates...

Journal: :Angewandte Chemie 2023

Axially enantioselective binuclear gold(I) catalysts fly as swallowtail butterflies around a mechanical hand providing chiral environment. The gold microchip on the symbolizes crucial role of catalysis in alkyne activation. Using gold-catalyzed condensation amine and diyne-ene, first example 1,2-dihydropyridine synthesis through formal [3+2+1] fashion is reported by Xin Hong, Xiaodong Shi et al...

Journal: :Chemical & pharmaceutical bulletin 2003
Yasushi Arakawa Tomoaki Murakami Yukimi Arakawa Shigeyuki Yoshifuji

Electrocyclic reaction product of 1-(methoxycarbonyl)-1,2-dihydropyridine was stereospecifically converted by RuO(4) oxidation into azetidine-cis-2,3-dicarboxylic acid.

Journal: :Journal of health sciences and medicine 2022

Aim: 1,4-dihydropyridine derivative, 1-(3-phenyl propyl)-4-(2-(2-hydroxybenzylidene) hydrazone)-1,4-dihydropyridine (abbreviated as DHP) was synthesized potential agent for Alzheimer’s disease which is a progressive neurodegenerative brain disorder affecting millions of elderly people. With this study, the electrochemical properties DHP were investigated and its interaction with DNA analyzed by...

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