Advances Toward new antidepressants beyond SSRIs: 1-aryloxy-3-piperidinylpropan-2-ols with dual 5-HT1A receptor antagonism/SSRI activities. Part 2
摘要:
Potent 5-HT1A/SSRIs at low nanomolar and subnanomolar concentrations were identified in a series of 1-(1H-indol-4-yloxy)-3-(4-benzo[b]thiophen-2-ylpiperidinyl)propan-2-ols. Incorporation of an alpha-Me group in the piperidine ring with its specific stereochemistry enhanced binding affinity at the 5-HT reuptake site and in vitro 5-HT1A antagonist functional activity. (C) 2003 Elsevier Science Ltd. All rights reserved.
Fused Catechol Ethers from Gold(I)-Catalyzed Intramolecular Reaction of Propargyl Ethers with Acetals
作者:Kamalkishore Pati、Gabriel dos Passos Gomes、Trevor Harris、Igor V. Alabugin
DOI:10.1021/acs.orglett.5b03522
日期:2016.3.4
Selective gold(I)-catalyzed rearrangement of aromatic methoxypropynyl acetals leads to fused catecholethers (1,2-dialkoxynapthalenes) in excellent yields. Furthermore, this process extends to the analogous heterocyclic and aliphatic substrates. Alkyne activation triggers nucleophilic addition of the acetal oxygen that leads to an equilibrating mixture of oxonium ions of similar stability. This mixture
Application of Directed Metallation in Synthesis, Part 2: An Expedient Synthesis of Methoxybenzo[b]thiophenes
作者:Chandrani Mukherjee、Asish De
DOI:10.1055/s-2002-19752
日期:——
A short, simple and expedient synthesis of substituted benzo[b]thiophenes involvingdirected ortho lithiation-side-chain deprotonation-cyclisation-reduction is described. This method is a valuable improvement over earliersyntheses of the same class of compounds, both with respect to the number of steps and overall yields.
2-Sulfamoylbenzo (b) thiophene derivatives, their preparation and pharmaceutical composition for the treatment of elevated intraocular pressure
申请人:Merck & Co., Inc.
公开号:EP0129478A2
公开(公告)日:1984-12-27
Novel 2-suifamoylbenzo [b]thiophenes and derivatives thereof are shown to be useful for the treatment of elevated intraocular pressure in compositions including ophthalmic drops and inserts.
The 1-trimethylsilylimidazole-mediated thiophene ring formation from 6-acylbenzo[b]thiophene-4,5-diones (3), which. were prepared utilizing photoacylation of benzo[b]thiophene-4,5-dione (1) with aliphatic aldehydes, and ethyl mercaptoacetate, followed by acid hydrolysis and oxidation with cerium(IV) ammonium nitrate (CAN), led to one-pot formation of the 3-substituted ethyl 4,5dioxo-4,5-dihydrobenzo[2,1-b:3,4-b ']dithiophene-2-carboxylates (4) in satisfactory yields.