The Use of Formamidine Protection for the Derivatization of Aminobenzoic Acids
摘要:
N,N-Dimethylformamidine and novel N,N-diisopropylformamidine protecting groups were used to carry out a one-pot conversion of aminobenzoic acids into the corresponding amides. General conditions for an in situ transformation of aminobenzoic acids and their heterocyclic analogues into the corresponding formamidine-protected acid chlorides were developed. These chlorides were used in reactions with amines, including poorly reactive anilines. The protected amides were then smoothly deprotected by heating with ethylenediamine derivatives, resulting in a general procedure for the one-pot transformation of aminobenzoic acids into their amides. Our one-pot procedure was successfully applied to the preparation of several compounds of pharmaceutical interest.
[EN] N-THIAZOL-2-YL-BENZAMIDE DERIVATIVES<br/>[FR] DERIVES DE N-THIAZOLE-2-YLE-BENZAMIDE
申请人:LUNDBECK & CO AS H
公开号:WO2005039572A1
公开(公告)日:2005-05-06
The invention relates to N-thiazol-2-yl-benzamide derivatives of the formula I in the description wherein the variables are as defined in the claims. The compounds are A2A-receptor ligands, such as antagonists, agonists, reverse agonists or partial agonists, and are useful in the treatment of neurological and psychiatric disorders where an A2A-receptor is implicated.
The invention relates to compounds of the formula I
wherein the variables are as defined in the claims. The compounds are A
2A
-receptor ligands, such as antagonists, agonists, reverse agonists or partial agonists, and are useful in the treatment of neurological and psychiatric disorders where an A
2A
-receptor is implicated.
The invention relates to compounds of the formula I
wherein the variables are as defined in the claims. The compounds are A
2A
-receptor ligands, such as antagonists, agonists, reverse agonists or partial agonists, and are useful in the treatment of neurological and psychiatric disorders where an A
2A
-receptor is implicated.
The invention relates to compounds of the formula I
A-B-Z I
wherein the variables are as defined in the claims. The compounds are pro-drugs of A
2A
-receptor ligands with improved aqueous solubility, and are useful in the treatment of neurological and psychiatric disorders where an A
2A
-receptor is implicated.