191673-26-4Relevant academic research and scientific papers
Efficient synthesis of a key intermediate of neurokinin receptor antagonists using a bifunctional asymmetric catalyst
Takamura, Makoto,Yabu, Kazuo,Nishi, Takahide,Yanagisawa, Hiroaki,Kanai, Motomu,Shibasaki, Masakatsu
, p. 353 - 356 (2007/10/03)
We report herein an efficient synthetic method for the preparation of 2-[(2R)-arylmorpholin-2-yl]ethanol, a key intermediate of neurokinin receptor antagonists. Catalytic asymmetric cyanosilylation of ketone 3 using titanium complex 4 was employed to introduce the required stereochemistry.
Salts of an optically-active sulfoxide derivative
-
, (2008/06/13)
Hydrochloride of fumarate of 1-{2-[(2R)-(3,4-dichlorophenyl)-4-(3,4,5-trimethyoxybenzoyl)morpholin-2-yl]ethyl}spiro[benzo(c)thiophene-1(3H),4′-piperidin]-(2S)-oxide. These compounds have good oral adsorption and exhibit markedly excellent antagonistic act
Heterocyclic compounds having tachykinin receptor antagonist activity their preparation and their use
-
, (2008/06/13)
Compounds of the formula and quaternary ammonium ions thereof, wherein R1 and R2 are the same or different and are carbocyclic aryl or aromatic heterocyclic; A is methylene, carbonyl or sulfonyl; B is a single bond, C1-C4 alkylene or C2-C4, alkenylene; D is oxygen; E is C2 alkylene; G is C1-C4 alkylene or C2-C4 alkenylene; and L is -C(R4)(R5), wherein R4 and R5 together with the carbon atom to which they are attached represent a C5-C10 cycloalkyl or a C5-C10 heterocyclic. Especially preferred are compounds wherein L represents wherein J is a C1-C6 alkylene; Ar is a ring carbocyclic or aromatic heterocyclic and S*->O is a sulfoxide in which the sulfur atom is in the 5-configuration. The compounds have tachykinin receptor antagonist activity and exhibit an activity against both the NK1 and NK2 receptors.
