Boc-Protected Amines via a Mild and Efficient One-Pot Curtius Rearrangement
作者:Hélène Lebel、Olivier Leogane
DOI:10.1021/ol051428b
日期:2005.9.1
[reaction: see text] The reaction of a carboxylic acid with di-tert-butyl dicarbonate and sodium azide allowed the formation of an acyl azide intermediate, which undergoes a Curtiusrearrangement in the presence of tetrabutylammonium bromide and zinc(II) triflate. The trapping of the isocyanate derivative in the reaction mixture led to the desired tert-butyl carbamate in high yields at low temperature
One-Pot Curtius Rearrangement Processes from Carboxylic Acids
作者:Hélène Lebel、Olivier Leogane
DOI:10.1055/s-0029-1216795
日期:2009.6
An efficient and practical synthesis of amine derivatives from carboxylic acids is described using new one-potCurtiusrearrangement processes. The preparation of carbamate-protected amines and anilines, as well as ureas was achieved in good to excellent yields on a multigram scale. Curtiusrearrangement - acyl azides - carbamates - protected amino acids - anilines - ureas
Methods and compositions for treating rheumatoid arthritis
申请人:Yednock A. Theodore
公开号:US20050065192A1
公开(公告)日:2005-03-24
This application relates to methods and compositions for treating rheumatoid arthritis by administering a combination therapy comprising methotrexate and an antibody to alpha-4 integrin or an immunologically active antigen binding fragment in therapeutically effective amounts. The application also relates generally to methods and compositions for treating rheumatoid arthritis by administering a combination therapy comprising methotrexate and small molecule alpha-4 integrin antagonist that inhibits the alpha-4 integrin (α4 integrin) interaction with VCAM-1. The invention further relates to methods of preparing the compounds and methods of using the compounds and compositions.
[EN] 4-(ISOXAZOLYL)-THIAZOLE-2-OXAMIC ACIDS AND DERIVATIVES THEREOF
申请人:ZAMBON, S.P.A.
公开号:WO1986000900A1
公开(公告)日:1986-02-13
(EN) 4-(isoxazolyl)-thiazole-2-oxamic acids, esters and salts thereof; method for preparing them and intermediate compounds useful for their preparation. Said compounds possess antiallergic and antianaphylactic activity and may be used in the pharmaceutical field. Compositions for pharmaceutical use containing said compounds as the active ingredients are also described.(FR) Acides 4-(isoxazolyl)-thiazole-2-oxamiques, leurs esters et leurs sels; procédé pour les préparer et composés intermédiaires utiles pour leur préparation. Lesdits composés ont une activité anti-allergique et anti-anaphylactique et peuvent être utilisés dans le domaine pharmaceutique. Des compositions d'utilisation pharmaceutique contenant lesdits composés en tant qu'ingrédients actifs sont également décrites.
将以下英文文本翻译成中文:
(EN)
4-(isoxazolyl)-thiazole-2-oxamic acids, esters and salts thereof; method for preparing them and intermediate compounds useful for their preparation. Said compounds possess antiallergic and antianaphylactic activity and may be used in the pharmaceutical field. Compositions for pharmaceutical use containing said compounds as the active ingredients are also described.
(FR)
Acides 4-(isoxazolyl)-thiazole-2-oxamiques, leurs esters et leurs sels; procédé pour les préparer et composés intermédiaires utiles pour leur préparation. Lesdits composés ont une activité anti-allergique et anti-anaphylactique et peuvent être utilisés dans le domaine pharmaceutique. Des compositions d'utilisation pharmaceutique contenant lesdits composés en tant qu'ingrédients actifs sont également décrites.
Mild and Efficient One-Pot Curtius Rearrangement: Preparation of<i>N</i>-<i>tert</i>-Butyl Adamantanyl-1-Yl-Carbamate