A novel approach to functionalised 5,7,8,9-tetrahydropyrimido[4,5-b][1,4]diazepin-6-ones using intramolecular palladium-catalysed amidation
摘要:
The development of a novel palladium-catalysed amidation approach towards 5,7,8,9-tetrahydropyrimido[4,5-b][1,4]diazepin-6-one templates is highlighted. The route proceeds through the reaction of an amino amide, generated by 1,4-addition of an amine to an acrylamide, with 5-bromo-2,4-dichloropyrimidine and final palladium-catalysed cyclisation to provide the functionalised scaffold in up to 60% isolated yield over three steps. The route offers efficiency advantages over the previously reported nitro-reduction cyclisation approach to these molecules. It also provides alternative means to introduce bulky alkyl substituents at the amide nitrogen. The application of this route in the synthesis of a variety of analogues is described. (C) 2012 Published by Elsevier Ltd.
DOI:
10.1016/j.tetlet.2012.03.125
作为产物:
描述:
N-甲基-2-丙烯酰胺 、 异丙胺 在
甲醇 、 crude product 、 氨 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以to afford the title compound (1.56 g, Quant.) as an oil, which的产率得到N-methyl-3-(propan-2-ylamino)propanamide
Compounds of Formula I that inhibit the activity of the diacylglycerol acyltransferase 2 (DGAT2) and their uses in the treatment of diseases linked thereto in animals are described herein.
There is provided a compound of formula (I):
processes for the manufacture thereof, pharmaceutical compositions thereof and uses in therapy.
提供了一个化合物的化学式(I):
其制备方法,药物组合物以及在治疗中的用途。
PYRROLOBENZODIAZEPINES USED TO TREAT PROLIFERATIVE DISEASES
申请人:Howard Philip Wilson
公开号:US20130059800A1
公开(公告)日:2013-03-07
Pyrrolobenzodiazepine dimers I having a C2-C3 double bond and an aryl group at the C2 position on one monomer unit, and a C2-C3 double bond and either a conjugated double or triple bond at the C2 position or an alkyl group at the C2 position on the other monomer unit, and conjugates of these compounds.
The invention provides certain substituted pyridines of the Formula (I) or pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
, R
cy
, C
y
, and t are as defined herein. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions mediated by Spleen Tyrosine Kinase (Syk) kinase.
SUBSTITUTED DIAZINE AND TRIAZINE SPLEEN TYROSINE KINEASE (SYK) INHIBITORS
申请人:Merck Sharp & Dohme Corp.
公开号:US20150166486A1
公开(公告)日:2015-06-18
The invention provides certain substituted diazine and triazine compounds of the Formula (I) (I) or pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
, R
cy
, C
y
, and t are as defined herein. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions mediated by Spleen Tyrosine Kinase (Syk) kinase.