iodine-magnesium exchange. In many cases, the exchange can be extended to heteroaryl bromides, and a case of a chlorine-magnesium exchange is described with tetrachlorothiophene. This new preparation of functionalized heteroarylmagnesium compounds provides after reaction with various electrophiles a new entry to a broad range of polyfunctional pyridines, imidazoles, furanes, thiophenes, pyrroles, antipyrines
Functionalized iodopyridines bearing either a chloride, ester or nitrile function were converted to the corresponding organomagnesium derivatives at -40 °C or -78 °C by treatment with i-PrMgBr (1.1 equiv, 0.5 h, > 90% yield). The resulting functionalized Grignard reagents react with aldehydes, TosCN directly or with allylic bromides and benzoyl chloride after transmetalation with CuCN leading to polyfunctional pyridines.
BICYCLIC ORGANIC COMPOUNDS SUITABLE FOR THE TREATMENT OF INFLAMMATORY OR ALLERGIC CONDITIONS
申请人:Taylor Roger John
公开号:US20100113774A1
公开(公告)日:2010-05-06
A compound of formula (I): in free or salt form, wherein A, R
1
, R
3
, Q
a
, Q
b
and Q are as defined herein, for the treatment of a disease mediated by the S1P2 or S1P3 receptor, such as inflammatory or obstructive airways disease.
The present invention provides compounds useful as inhibitors of PDK1. The present invention also provides compositions thereof, and methods of treating PDK1-mediated diseases.
Bicyclic organic compounds suitable for the treatment of inflammatory or allergic conditions
申请人:Taylor Roger John
公开号:US08633211B2
公开(公告)日:2014-01-21
A compound of formula (I): in free or salt form, wherein A, R1, R3, Qa, Qb and Q are as defined herein, for the treatment of a disease mediated by the S1P2 or S1P3 receptor, such as inflammatory or obstructive airways disease.