[EN] 3-(4-FLUOROPHENYL)-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES AND RELATED COMPOUNDS HAVING ANALGESIC ACTIVITY [FR] AMIDES D'ACIDE 3-(4-FLUOROPHÉNYL)-3-HYDROXY-2-AMINO-PROPIONIQUE ET COMPOSÉS ASSOCIÉS AYANT UNE ACTIVITÉ ANALGÉSIQUE
3-aryl-3-hydroxy-2-amino-propionic acid amides, 3-heteroaryl-3-hydroxy-2-aminopropionic acid amides and related compounds having analgesic and/or immuno stimulant activity
Pharmaceutical composition comprising one or more entacapone derivatives and one or more pharmaceutically acceptable carriers, a process for producing the pharmaceutical composition, specific entacapone derivatives, a process for the preparation of entacapone derivatives, and the use of the entacapone derivatives for the preparation of a medicament.
The present invention relates to an improved process for the preparation of Entacapone of formula (I)
comprising a step of,
condensation of 3,4-dihydroxy-5-nitrobenzaldehyde of formula (II)
with N,N-diethylcyanoacetamide of formula (III)
in the presence of two component solvent system, a catalyst and optionally a phase transfer catalyst to give Entacapone of formula (I).
Silver‐Catalyzed Sequential Cascade Reaction of Isocyanides with 1‐(2‐Ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol: Access to Benzo[
<i>b</i>
]fluorenes and Benzofuran‐Pyrroles
作者:Jian‐Quan Liu、Xinyi Chen、Xuanyu Shen、Yihan Wang、Xiang‐Shan Wang、Xihe Bi
DOI:10.1002/adsc.201801344
日期:2019.4
A silver‐catalyzed cycloaromatization of 1‐(2‐ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol with isocyanides efficiently provides benzo[b]fluorene and benzofuran‐pyrrole derivatives through a modular cascade reaction that includes a nucleophilic attack on the diyne substrate. A C−C cross‐coupling/oxygen transportation/Diels‐Alder/hydrogen shift/isomerization cascade mechanistic pathway is proposed.
银与异氰酸酯催化的1-(2-乙炔基-苯基)-丙-2-炔-1-醇的芳环芳香化反应可通过模块级联反应有效地提供苯并[ b ]芴和苯并呋喃-吡咯衍生物,包括对苯并的亲核攻击。二炔底物。提出了AC-C交叉偶联/氧迁移/ Diels-Alder /氢转移/异构化级联机制途径。
Mono Alkylation of α-Isocyano Acetamide to its Higher Homologues
作者:Jieping Zhu、Christopher Housseman
DOI:10.1055/s-2006-944224
日期:2006.7
Alkylation of α-isocyano acetamide (2) with alkyl halide in MeCN at 0 °C in the presence of cesium hydroxide afforded the mono-alkylated product 1 in good to excellent yield.
0 °C 时,在氢氧化铯存在下,在 MeCN 中用烷基卤化物对 δ- 异氰基乙酰胺(2)进行烷基化反应,得到了单烷基化产物 1,收率从良好到极好。
3-ARYL-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES, 3-HETEROARYL-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES AND RELATED COMPOUNDS HAVING ANALGESIC AND/OR IMMUNO STIMULANT ACTIVITY
申请人:Leblond Bertrand
公开号:US20090036436A1
公开(公告)日:2009-02-05
Compounds of Formulas 1 and 2
where the variables have the meaning disclosed in the specification, have analgesic and in some cases immunostimulant activity.