The mercury-mediated decarboxylation (Pesci reaction) of naphthoic anhydrides investigated by microwave synthesis
摘要:
The mercury-mediated decarboxylation (Pesci reaction) of several substituted naphthoic anhydrides has been investigated by microwave synthesis. A laboratory microwave reactor was found to be ideal for small-scale preparations of this slow reaction, reducing reaction times from typically four days to less than 1 h for the three-step process. The ionic reaction medium rapidly heated to high temperatures under microwave heating and could be efficiently maintained by low microwave power settings. Generation of stoichiometric CO2 was safely contained within the reaction tubes. A simplified reaction procedure has been developed. For substituted naphthoic anhydrides, H-1 NMR analysis of the naphthoate ester derivatives indicated no change in the regioisomer ratio compared to previously reported thermal values. (c) 2006 Published by Elsevier Ltd.
N-(2-phenyl-4-piperidinybutyl)-5,6,7,8-tetrahydro-1-naphthalenecarboxamides and their use as neurokinin 1 (NK1) and/or neurokinin 2 (NK2) receptor antagonists
申请人:Astrazeneca AB
公开号:US06403601B1
公开(公告)日:2002-06-11
Compounds of formula (I), wherein R2 is a 5,6,7,8-tetrahydronaphth-1-yl group which may be substituted (the remaining groups defined herein), and pharmaceutical compositions containing the compounds and methods of using the compounds in the treatment of a condition where antagonism of the NK1 and/or NK2 receptors is beneficial.
N-(2-PHENYL-4-PIPERIDINYLBUTYL)-5,6,7,8-TETRAHYDRO-1-NAPHTHALENECARBOXAMIDES AND THEIR USE AS NEUROKININ 1 (NK1) AND/OR NEUROKININ 2 (NK2) RECEPTOR ANTAGONISTS
申请人:AstraZeneca AB
公开号:EP1137637A1
公开(公告)日:2001-10-04
PYRAZOLOTRIAZINES AS INHIBITORS OF NUCLEASES
申请人:MASARYKOVA UNIVERZITA
公开号:US20170197966A1
公开(公告)日:2017-07-13
The invention provides compounds represented by the structural formula (1):
wherein R
1
, R
2
, R
3
and R
4
are as defined in the claims. The compounds are inhibitors of nucleases, and are useful in particular in a method of treatment and/or prevention of proliferative diseases, neurodegenerative diseases, and other genomic instability associated diseases.