Synthesis and Octopaminergic-agonist Activity of 3-(Substituted Phenyl)imidazolidine-2-thiones and Related Compounds
作者:Akinori HIRASHIMA、Kenji SHINKAI、Eiichi KUWANO、Eiji TANIGUCHI、Morifusa ETO
DOI:10.1271/bbb.62.1179
日期:1998.1
3-(Substituted phenyl)imidazolidine-2-thiones (SPITs) and related compounds were synthesized by cyclizing monoethanolamine hydrogen sulfate with arylisothiocyanates in the presence of sodium hydroxide. The activity for stimulating adenylate cyclase prepared from thoracic nerve cords of the American cockroach, Periplaneta americana L., was examined with these compounds. A SPIT with a 2,6-diethylphenyl
There is provided a compound of the formula (I′):
wherein x is a nitrogen or CRx, Rx is a hydrogen, etc., R
1
is an optionally substituted hydrocarbon group, etc., R
2
is an optionally substituted hydrocarbon group, etc., ring A is 5- to 8-membered heterocyclic ring, etc., and each of Y
1
, Y
2
and Y
3
is an optionally substituted carbon or a nitrogen, etc.; or a salt thereof or a prodrug thereof, which have CRF receptor antagonistic activity and use thereof.
Substituted Spiro Compounds and Their Use for Producing Pain-Relief Medicaments
申请人:Frank Robert
公开号:US20080269271A1
公开(公告)日:2008-10-30
The present invention relates to substituted spiro compounds, to processes for preparing them, to medicaments comprising these compounds and to the use of these compounds for producing medicaments.
A Bench-Stable Vilsmeier Reagent for in situ Alcohol Activation: Synthetic Application in the Synthesis of 2-Amino-2-Thiazolines
作者:Michael Corbett、Seb Caille
DOI:10.1055/s-0036-1589086
日期:2017.12
A robust, chemoselective direct condensation/cyclization of thioureas and amino alcohols is described. Employing a bench-stable Vilsmeier reagent, methoxymethylene- N , N -dimethyliminium methyl sulfate, the selective in situ activation of alcohols is achieved with high efficiency and broad functional-group tolerance. The reversible interaction of the Vilsmeier reagent with substrate was key to the
Facile Access to AgOCF<sub>3</sub>and Its New Applications as a Reservoir for OCF<sub>2</sub>for the Direct Synthesis of N−CF<sub>3</sub>, Aryl or Alkyl Carbamoyl Fluorides
showcase its performance in trifluoromethoxylations or as reservoir for O=CF2. This enabled the direct, practical and safe synthesis of valuable N‐alkyl/aryl and N−CF3 carbamoyl fluorides from secondary amines and isothiocyanides, respectively. Our mechanistic data indicate that AgOCF3 does not liberate O=CF2 until it is activated by a nucleophilic co‐reagent, reinforcing the stability of the salt under