Synthesen von Aminomethylen-?-halogenacetessigs�urederivaten und deren Ringschlu�reaktionen zu 3-Hydroxypyrrolen, Pyrido[1,2-a]pyrimidonen bzw. 4-Chinolonen ?,?-Diacyl-enamine und-enole, 5. Mitt.
Diversity-oriented synthesis of 1-hydroxy-2,4-benzodioates by regioselective [3+3] cyclocondensations of 1,3-bis(silyloxy)-1,3-butadienes with 3-alkoxy- and 3-silyloxy-2-alkoxycarbonyl-2-en-1-ones
The present invention provides compounds and compositions thereof which are useful as inhibitors of plasma kallikrein and which exhibit desirable characteristics for the same.
The present invention relates to certain new pyridin analogues of Formula (I)
to processes for preparing such compounds, to their utility as P2Y
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inhibitors and as anti-trombotic agents etc, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.
[EN] HETEROAROMATIC CARBOXAMIDE DERIVATIVES AS PLASMA KALLIKREIN INHIBITORS<br/>[FR] DÉRIVÉS DE CARBOXAMIDE HÉTÉROAROMATIQUES EN TANT QU'INHIBITEURS DE LA KALLICRÉINE PLASMATIQUE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2021160718A1
公开(公告)日:2021-08-19
Heteroaromatic carboxamides of formula (I), wherein Y, R, and Ar are as defined in the description and the claims, and pharmaceutically acceptable salts thereof can be used in methods for the treatment of diseases which can be influenced by the inhibition of plasma kallikrein.
The present invention relates to novel 2-piperazinopyrimidine derivatives represented by the following general formula [I] which are useful as, for example, an active ingredient of herbicides ##STR1## wherein R.sup.1 is a hydrogen atom or an aralkyl group and Y is one of the groups represented by the following general formulas [II] to [VII] ##STR2## (wherein a and b are positions to be bound to positions 4 and 5 of the pyrimidine ring of the formula [I], respectively; l.sub.1 and l.sub.2 each are an integer of 2 to 4; l.sub.3 is 2 or 0; l.sub.4 is 0 or 1, provided that l.sub.4 is 0 when l.sub.3 is 2 and l.sub.4 is 1 when l.sub.3 is 0; l.sub.5 is 2 or 3; l.sub.6 is 1 or 2; l.sub.7 is 2 or 3; R.sup.2 is a hydroxyl group or a toluenesulfonyloxy group; and R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each are a hydrogen atom or a lower alkyl group).
Toward Continuous‐Flow Synthesis of Biologically Interesting Pyrazole Derivatives
作者:Amrita Das、Haruro Ishitani、Shū Kobayashi
DOI:10.1002/adsc.201900954
日期:2019.11.19
continuous‐flow synthesis of substituted pyrazolederivatives has been developed via the formation of vinylidene keto esters as key intermediates. Heterogeneous Ni2+‐montmorillonite was found to be an efficient catalyst for orthoester condensation of 1,3‐dicarbonyls under flow conditions. The intermediate reacted with methylhydrazine to afford pyrazolederivatives, for which suitable selection of a solvent