Enantioselective synthesis of non-proteinogenic amino acids via metallated bis-lactim ethers of 2,5-diketopiperazines
作者:Ulrich Schöllkopf
DOI:10.1016/s0040-4020(01)91926-x
日期:1983.1
excess = asymmetric induction) of the adduct exceeds 95%. On hydrolysis the adducts are cleaved liberating the chiral auxiliary (used to build up the bis-lactim ether 1) and the target molecules, the opticallyactive amino acid methyl esters of type 8,19,25 or 36. The two amino acid esters are separable either by fractional distillation or (eventually after further hydrolysis to amino acids) by chromatography
The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R is C
1-4
alkyl
useful in the treatment of diseases and conditions for which antagonism of NK1 receptor is beneficial.
5-[5-[2-(3,5-BIS(Trifluoromethyl)Phenyl)-2-MethylpropanoMethylpropanoylmethylamino]-4-(4-Fluoro-2-Methylphenyl)]-2-Pyridinyl-2-Alkyl-Prolinamide As NK1 Receptor Antagonists
申请人:Alvaro Giuseppe
公开号:US20110060015A1
公开(公告)日:2011-03-10
The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R is C
1-4
alkyl
useful in the treatment of diseases and conditions for which antagonism of NK1 receptor is beneficial.
5-[5-[2-(3,5-BIS(TRIFLUOROMETHYL)PHENYL)-2-METHYLPROPANOMETHYLPROPANOYLMETHYLAMINO]-4-(4-FLUORO-2-METHYLPHENYL)]-2-PYRIDINYL-2-ALKYL-PROLINAMIDE AS NK1 RECEPTOR ANTAGONISTS
申请人:Glaxo Wellcome Manufacturing Pte Ltd.
公开号:US20130143931A1
公开(公告)日:2013-06-06
The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R is C
1-4
alkyl
useful in the treatment of diseases and conditions for which antagonism of NK1 receptor is beneficial.
5-[5-[2-(3,5-bis(trifluoromethyl)phenyl)-2-methylpropanoMethylpropanoylmethylamino]-4-(4-fluoro-2-methylphenyl)]-2 as NK1 receptor antagonists
申请人:Glaxo Wellcome Manufacturing Pte Ltd
公开号:US08344005B2
公开(公告)日:2013-01-01
The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R is C1-4 alkyl
useful in the treatment of diseases and conditions for which antagonism of NK1 receptor is beneficial.