New facile alkoxycarbonylating agent, alkyl pyrazole-1-carboxylates. The preparation and the utilities
摘要:
Alkyl pyrazole-1-carboxylates (2), which were readily prepared from alkyl chloroformate or carbazate in good yields, were provided as the new facile alkoxycarbonylating agents toward the Grignard reagents for the synthesis of one carbon higher carboxylic esters. Also amines were alkoxycarbonylated by 2 to produce the corresponding urethanes even in an aqueous medium. Benzyl 3,5-dimethylpyrazole-1-carboxylate (2d) could be utilized for the Cbz-protection of amino acids and esters in good yield without any racemization. (C) 1998 Elsevier Science Ltd. All rights reserved.
Electrophilic halogenation is used to produce a wide variety of halogenated compounds. Previously reported methods have been developed mainly using a reagent‐based approach. Unfortunately, a suitable “catalytic” process for halogen transfer reactions has yet to be achieved. In this study, arylamines have been found to generate an N‐halo arylamine intermediate, which acts as a highly reactive but selective catalytic
NOVEL ANTIVIRAL PYRROLOPYRIDINE DERIVATIVES AND METHOD FOR PREPARING THE SAME
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
公开号:US20140249162A1
公开(公告)日:2014-09-04
The present invention relates to a pyrrolopyridine derivative represented by the Chemical Formula I, and a racemate or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and relates to an antiviral composition including the same as an active ingredient. The compound of the Chemical Formula I has excellent antiviral activity and selectivity for wild type and resistant HIV-1, and thereby is useful as a therapeutic agent for acquired immune deficiency syndrome (AIDS).
Tri-aryl/heteroaromatic cannabinoids and use thereof
申请人:Moore Bob M.
公开号:US20080234293A1
公开(公告)日:2008-09-25
Cannabinoid derivatives according to formula (I) are disclosed
wherein, X, Y, R
1
, R
2
, and W can have the definitions provided herein. Without limitation, use of such compounds, their salts or pro-drug, or compositions containing the compounds, salts, or pro-drug, to modify the activity of CB1 and CB2 receptors and treat conditions mediated by these receptors.
[EN] PYRROLOPYRIDINEAMINO DERIVATIVES AS MPS1 INHIBITORS<br/>[FR] DÉRIVÉS PYRROLOPYRIDINEAMINO EN TANT QU'INHIBITEURS DE MPS1
申请人:CANCER REC TECH LTD
公开号:WO2012123745A1
公开(公告)日:2012-09-20
The present invention relates to the use of certain pyrrolopyridineamino derivatives (hereinafter referred to as "PPA derivatives"), particularly 1H-pyrrolo[3,2-c]pyridine-6- amino derivatives, to inhibit the spindle checkpoint function of Monospindle 1 (Mps1 – also known as TTK) kinases either directly or indirectly via interaction with the Mps kinase itself. In particular, the present invention relates to PPA derivatives for use as therapeutic agents for the treatment and/or prevention of proliferative diseases, such as cancer. The present invention also relates to processes for the preparation of the PPA derivatives, and pharmaceutical compositions comprising them. Formula (I)
ethoxyethyl)-3-iodo-1H-pyrazole derivatives has been developed. During th is work protection reaction of N-H bond in substituted 3-iodo-1 H-pyrazole derivatives with ethyl vinyl ether and migration of ethoxyethyl protecting group was inves tigated. Synthetic possibilities of Sonogashira cross-coupling reactions of substituted 1-(1-ethoxy ethyl)-3-iodo-1H-pyrazole derivatives with phenylacetylene were studied