An object of the present invention is to provide a compound having a modulating activity at an S1P receptor which is useful for preventing and treating autoimmune diseases, allergic diseases, and the like. According to the present invention, a compound represented by formula (I) or a pharmaceutically acceptable salt thereof is provided.
Programmed synthesis of arylthiazoles through sequential C–H couplings
作者:Satoshi Tani、Takahiro N. Uehara、Junichiro Yamaguchi、Kenichiro Itami
DOI:10.1039/c3sc52199k
日期:——
A programmed synthesis of privileged arylthiazoles via sequential C–Hcouplings catalyzed by palladium or nickel catalysts has been accomplished. This versatile protocol can supply all possible arylthiazole substitution patterns (2-aryl, 4-aryl, 5-aryl, 2,4-diaryl, 2,5-diaryl, 4,5-diaryl, and 2,4,5-triaryl) from an unfunctionalized thiazole platform by 11 distinct synthetic routes. We have generated
Preparation of 2- and 5-Aryl Substituted Thiazoles via Palladium-Catalyzed Negishi Cross-Coupling
作者:Jacob Jensen、Niels Skjaerbaek、Per Vedsø
DOI:10.1055/s-2001-9753
日期:——
2-Aryl substituted thiazoles 3a-k were prepared by oxidative insertion of zinc into 2-bromothiazole (1) followed by palladium(0)-catalyzed Negishi cross-coupling in a one-pot procedure. 5-Aryl substituted thiazoles 6a-i were prepared by regioselective C-5 lithiation of 2-(trimethylsilyl)thiazole (4) follwed by transmetalation with zinc chloride and palladium(0)-catalyzed Negishi cross-coupling in a one-pot procedure. The synthetic sequences were combined to give 2,5-diaryl substituted thiazoles 8a, b and 10 via stepwise C-2 and C-5 arylation and vice versa.
An object of the present invention is to provide a compound having a modulating activity at an S1P receptor which is useful for preventing and treating autoimmune diseases, allergic diseases, and the like. According to the present invention, a compound represented by formula (I) or a pharmaceutically acceptable salt thereof is provided.
An object of the present invention is to provide a compound having a modulating activity at an S1P receptor which is useful for preventing and treating autoimmune diseases, allergic diseases, and the like. According to the present invention, a compound represented by formula (I) or a pharmaceutically acceptable salt thereof is provided.
[Compound 1]