[EN] PROSTAGLANDIN EP4 RECEPTOR ANTAGONIST COMPOUNDS<br/>[FR] COMPOSÉS ANTAGONISTES DU RÉCEPTEUR DE LA PROSTAGLANDINE EP4
申请人:HEPTARES THERAPEUTICS LTD
公开号:WO2021069927A1
公开(公告)日:2021-04-15
The disclosures herein relate to novel compounds of formula (1): (1) and salts thereof, wherein A, X, R1, R2, R3, R4, R10 and R11 are defined herein, and their use in treating, preventing, ameliorating, controlling or reducing the risk of disorders associated with EP4 receptors.
SYNTHESIS METHOD FOR L-CYCLIC ALKYL AMINO ACID AND PHARMACEUTICAL COMPOSITION HAVING THEREOF
申请人:ASYMCHEM LABORATORIES (TIANJIN) CO., LTD
公开号:US20160319312A1
公开(公告)日:2016-11-03
A synthesis method for L-cyclic alkyl amino acid and a pharmaceutical composition having the said amino acid are provide in the present disclosure provides. The synthesis method comprises: step A.) preparing a cyclic alkyl keto acid or a cyclic alkyl keto acid salt having Structural Formula (I) or Structural Formula (II), and step B.) mixing the cyclic alkyl keto acid or the cyclic alkyl keto acid salt with ammonium formate, a leucine dehydrogenase, a formate dehydrogenase and a coenzyme NAD
+
, and carrying out a reductive amination reaction to generate the L-cyclic alkyl amino acid, wherein the Structural Formula (I) is
where n
1
≧1, m
1
≧0 and the M
1
is H or a monovalent cation; the Structural Formula (II) is
where n
2
≧0, m
2
≧0, the M
2
is H or a monovalent cation, an amino acid sequence of the leucine dehydrogenase is SEQ ID No.1.
The disclosures herein relate to novel compounds of formula (1): (1) and salts thereof, wherein A, X, R
1
, R
2
, R
3
, R
4
, R
10
and R
11
are defined herein, and their use in treating, preventing, ameliorating, controlling or reducing the risk of disorders associated with EP
4
receptors.
Chemical Dynamic Thermodynamic Resolution and<i>S</i>/<i>R</i>Interconversion of Unprotected Unnatural Tailor-made α-Amino Acids
作者:Shuni Wang、Shengbin Zhou、Jiang Wang、Yong Nian、Aki Kawashima、Hiroki Moriwaki、José L. Aceña、Vadim A. Soloshonok、Hong Liu
DOI:10.1021/acs.joc.5b01292
日期:2015.10.16
Described here is an advanced, general method for purely chemical dynamic thermodynamic resolution and S/R interconversion of unprotected tailor-made α-amino acids (α-AAs) through intermediate formation of the corresponding nickel(II)-chelated Schiff bases. The method features virtually complete stereochemical outcome, broad substrate generality (35 examples), and operationally convenient conditions