Diastereoselective indium-mediated allylation of N-tert-butanesulfinyl ketimines: easy access to asymmetric quaternary stereocenters bearing nitrogen atoms
作者:Juan Alberto Sirvent、Francisco Foubelo、Miguel Yus
DOI:10.1039/c2cc17493f
日期:——
Indium-mediated allylation of N-tert-butanesulfinyl ketimines afforded in high yields and diastereoselectivities homoallylic amine derivatives with the nitrogenatom bonded to a quaternary stereocenter.
Stereodivergent Synthesis of Pseudotabersonine Alkaloids
作者:Mihail Kazak、Martins Priede、Kirill Shubin、Hannah E. Bartrum、Jean-François Poisson、Edgars Suna
DOI:10.1021/acs.orglett.7b02635
日期:2017.10.6
An eight-step stereodivergent synthesis of enantiomerically pure (−)-14-epi-pseudotabersonine and (+)-pseudotabersonine has been developed from a common N-tert-butanesulfinyl ketimine key intermediate.
Chroman compounds and derivatives of Formula I are useful inhibitors of TRPM8. Such compounds are useful in treating a number of TRPM8 mediated disorders and conditions and may be used to prepare medicaments and pharmaceutical compositions useful for treating such disorders and conditions. Examples of such disorders include, but are not limited to, migraines and neuropathic pain. Compounds of Formula I have the following structure:
where the definitions of the variables are provided herein.
Formula I的Chroman化合物和衍生物是TRPM8的有用抑制剂。这些化合物在治疗多种由TRPM8介导的疾病和症状方面具有用途,并可用于制备治疗这些疾病和症状的药物和药物组合物。这些疾病的例子包括,但不限于,偏头痛和神经病性疼痛。Formula I的化合物具有以下结构:变量的定义在此提供。
US8952009B2
申请人:——
公开号:US8952009B2
公开(公告)日:2015-02-10
Asymmetric Synthesis of Pyrrolidine-Containing Chemical Scaffolds via Tsuji-Trost Allylation of N<i>-tert-</i>
Butanesulfinyl Imines
作者:Rafid S. Dawood、Irene Georgiou、Ross P. Wilkie、William Lewis、Robert A. Stockman
DOI:10.1002/chem.201702616
日期:2017.8.16
A simple and efficient asymmetric synthesis of novel sp3‐rich pyrrolidine chemical scaffolds over five steps starting from simple ketones is described. Key steps involve the use of tert‐butanesulfinamide as a chiral auxiliary to perform an asymmetric Tsuji–Trost allylation, with subsequent cross‐metathesis with an acrylate ester and reduction of the sulfinimine/cyclisation of the resulting amine giving