Synthesis and properties of tetrazolium-N-phenacylides. Part 2
摘要:
Various 1 -alkyl-5-methyl-1H-tetrazolium-4-phenacylides 3 (homologues of C) have been prepared, acylated and (thio)carbamoylated. The unstable ylide C has been acylated in situ.
A novel method for the stereospecificsynthesis of 1,5-disubstituted tetrazoles from ketoximes via the Beckmann rearrangement was developed using diphenyl phosphorazidate (DPPA) as both the oxime activator and azide source. Various ketoximes were transformed into the corresponding 1,5-disubstituted tetrazoles with exclusive trans-group migration and no E-Z isomerization of the ketoxime. This method
A novel method was developed for the synthesis of tetrazoles from amides utilizing diphenyl phosphorazidate or bis(p-nitrophenyl) phosphorazidate as both the activator of amide–oxygen for elimination and azide source. Various amides were converted into the corresponding tetrazoles in good yields. This synthetic method allows to prepare 1,5-disubstituted and 5-substituted 1H-tetrazoles from various
[EN] SMALL MOLECULE INHIBITORS OF THE ANDROGEN RECEPTOR ACTIVITY AND/OR EXPRESSION AND USES THEREOF<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DE L'ACTIVITÉ ET/OU DE L'EXPRESSION DU RÉCEPTEUR DES ANDROGÈNES ET UTILISATIONS CORRESPONDANTES
申请人:UNIV ARIZONA
公开号:WO2020123670A1
公开(公告)日:2020-06-18
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a piperazine (or similar) structure which function as antagonists of androgen receptor activity, and their use as therapeutics for the treatment of cancer (e.g., castration-resistant prostate cancer) and other conditions characterized with androgen receptor activity and/or androgen receptor expression.
[EN] SMALL MOLECULE INHIBITORS OF CAV3.2 ACTIVITY AND USES THEREOF<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DE L'ACTIVITÉ DES CANAUX CAV3.2 ET LEURS UTILISATIONS
申请人:UNIV ARIZONA
公开号:WO2021231553A1
公开(公告)日:2021-11-18
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a piperazine or piperidine structure which function as inhibitors of the CaV3.2 voltage gated calcium channel activity (e.g., depolarization-induced calcium influx), and their use as therapeutics for the treatment and/or prevention of CaV3.2 related pain (e.g., HIV-associated peripheral sensory neuropathy, chemotherapy-induced peripheral neuropathy (CIPN), spinal nerve ligation (SNL) induced neuropathy) and related conditions.
Gold-Catalyzed Synthesis of Tetrazoles from Alkynes by CC Bond Cleavage
作者:Morgane Gaydou、Antonio M. Echavarren
DOI:10.1002/anie.201308076
日期:2013.12.9
Golden duality: Tetrazoles are formed by the reaction of alkynes with TMSN3 (TMS=trimethylsilyl) in the presence of iPrOH and the gold(I) catalyst [JohnPhosAu(MeCN)]SbF6. In this transformation gold plays a dual role, first activating the alkyne and then generating a Brønsted acid in situ.