Sulfonamide synthesis using N-hydroxybenzotriazole sulfonate: an alternative to pentafluorophenyl (PFP) and trichlorophenyl (TCP) esters of sulfonic acids
摘要:
The N-hydroxybenzotriazole (HOBt) sulfonate esters undergo amidation under ambient conditions in the presence of di-isopropylethyl amine. This method can be applied to varieties of amines including sterically hindered amino acid esters in less time with reasonably good yields.HOBt ester of sulfonic acids can be a replacement for pentafluorophenyl and trichlorophenyl ester as well as chloride moiety of sulfonyl chloride for amidation. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] THIAZOLYLPIPERIDINE DERIVATIVES AS MTP INHIBITORS<br/>[FR] DERIVES DE LA THIAZOLYLPIPERIDINE, INHIBITEURS DE LA MTP
申请人:MERCK PATENT GMBH
公开号:WO2005003128A1
公开(公告)日:2005-01-13
The present invention relates to thiazolylpiperidine derivatives of the general formula (I): in which: A represents a radical chosen from the radicals a1 and a2 below: G represents a bond or a divalent radical chosen from the groups g1, g2 and g3 below: and R1, R2, R2’, R3, R4, R5, Y and Z are as defined in the description. Application of the compounds of the formula (I) to the treatment of hypertriglyceridaemia, hypercholesterolaemia and dyslipidaemia.
TEMPLATES FOR NUCLEATION AND PROPAGATION OF PEPTIDE SECONDARY STRUCTURE
申请人:Prabhakaran Erode N.
公开号:US20100228004A1
公开(公告)日:2010-09-09
Compounds having the Formula I and pharmaceutically acceptable salts thereof are provided in which the variables are described herein.
Methods of making the compounds of Formula I are also disclosed.
提供具有化学式I和其药用可接受盐的化合物,其中变量在此处描述。还公开了制备化学式I化合物的方法。
CONFORMATIONALLY CONSTRAINED PEPTIDE MIMETICS
申请人:Prabhakaran Erode Nagarajan
公开号:US20100261871A1
公开(公告)日:2010-10-14
Conformationally constrained peptide mimetics in which a hydrogen bond interaction is replaced with a covalent hydrogen bond mimic are provided. Also provided are various methods of making these peptide mimetics.
The present invention relates to thiazolylpiperidine derivatives of the general formula (I):
in which:
A represents a radical chosen from the radicals a1 and a2 below:
G represents a bond or a divalent radical chosen from the groups g1, g2 and g3 below:
and R
1
, R
2
, R
2′
, R
3
, R
4
, R
5
, Y and Z are as defined in the description. Application of the compounds of the formula (I) to the treatment of hypertriglyceridaemia, hypercholesterolaemia and dyslipidaemia.