Synthesis of Indoles by Palladium-Catalyzed Reductive Cyclization of β-Nitrostyrenes with Carbon Monoxide as the Reductant
作者:Francesco Ferretti、Mohamed A. EL-Atawy、Stefania Muto、Mohamed Hagar、Emma Gallo、Fabio Ragaini
DOI:10.1002/ejoc.201500933
日期:2015.9
An efficient catalytic cyclization of β-nitrostyrenes to indoles was developed. The reaction was applied to the synthesis of 3-arylindoles and 2-alkylindoles. Given that in the latter case the starting β-nitrostyrenes can be easily obtained by a Henry reaction, the present method allows indoles to be obtained in a two-step sequence starting from cheap reactants.
Disclosed are novel piperidine-substituted indoles- or heteroderivatives thereof of the formula 1:
wherein R
1
, R
5
, R
6
, R
7
, A, B, D-E, Y, i, j, n and m are defined as below.
The compounds of formula 1 are useful as agonists or antagonists of CCR-3. The present invention is also directed to pharmaceutically acceptable salts thereof, more particularly to provide pharmaceutical compositions comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of at least one of the compounds of the present invention or a pharmaceutically acceptable salt thereof.
Accordingly, one object of the present invention are novel piperidine-substituted indoles- or heteroderivatives thereof of the formula 1:
wherein R
1
, R
5
, R
6
, A, B, D-E, X—W—V, Y, i, j, n and m are defined as below.
Another object of the present invention is to provide agonists or antagonists of CCR-3, or pharmaceutically acceptable salts thereof, more particularly to provide pharmaceutical compositions comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of at least one of the compounds of the present invention or a pharmaceutically acceptable salt thereof.
The present invention relates to new CGRP-antagonists of general formula I
wherein U, V, X, Y, R1, R2, R3 and R4 are defined as in the description, the tautomers, the isomers, the diastereomers, the enantiomers, the hydrates, the mixtures thereof and the salts thereof and the hydrates of the salts, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, medicaments containing these compounds, their use and processes for preparing them.
Gegenstand der vorliegenden Erfindung sind neue CGRP-Antagonisten der allgemeinen Formel I
in der U, V, X, Y, R1, R2, R3 und R4 wie in der Beschreibung erwähnt definiert sind, deren Tautomere, deren Isomere, deren Diastereomere, deren Enantiomere, deren Hydrate, deren Gemische und deren Salze sowie die Hydrate der Salze, insbesondere deren physiologisch verträgliche Salze mit anorganischen oder organischen Säuren oder Basen, diese Verbindungen enthaltende Arzneimittel, deren Verwendung und Verfahren zu ihrer Herstellung.
本发明涉及通式 I 的新型 CGRP 拮抗剂
中的 U、V、X、Y、R1、R2、R3 和 R4 的定义、它们的同分异构体、非对映异构体、对映体、它们的水合物、它们的混合物和它们的盐以及盐的水合物,特别是它们与无机或有机酸或碱的生理相容盐、含有这些化合物的药物、它们的用途和它们的制备工艺。