天然产物中经常发现具有多个立体中心的螺环己二烯酮,但合成目标仍然具有挑战性。在此,我们报告了通过 Ir 催化的烯丙基脱芳构化反应对双酚衍生物进行对映选择性去对称化,以良好的产率(高达 90%)和出色的对映选择性(高达 99% ee)提供具有多达三个连续立体中心的螺环己二烯酮衍生物。该反应的高效率体现在反应时间短(30 分钟)、催化剂负载量低(低至 0.2 mol%)以及以克规模进行反应的能力。(+)-tatanan B 和 (+)-tatanan C 的全合成也是使用这种 Ir 催化的烯丙基脱芳构化反应作为关键步骤来实现的。
Gold-Catalyzed Intramolecular Regio- and Enantioselective Cycloisomerization of 1,1-Bis(indolyl)-5-alkynes
作者:Long Huang、Hai-Bin Yang、Di-Han Zhang、Zhen Zhang、Xiang-Ying Tang、Qin Xu、Min Shi
DOI:10.1002/anie.201302632
日期:2013.6.24
Bis(indole) alkaloids analogues were prepared under mild conditions and in high yields through a gold‐catalyzed cycloisomerization of 1,1‐bis(indolyl)‐5‐alkynes (see scheme). The enantioselective version of this reaction gave the corresponding products in moderate to excellent yields (55–90 %), moderate to good ee values (48–96 %), and satisfactory regioselectivities (3.5:1→20:1).
Synthesis of the Carbon Framework of the Stephaoxocanes Employing a Sequential RCM/Pomeranz–Fritsch Approach
作者:Andrea B. J. Bracca、Teodoro S. Kaufman
DOI:10.1002/ejoc.200700570
日期:2007.11
The syntheses of two cyclodeca[ij]isoquinoline derivatives, which embody the carbonframework of stephaoxocanidine, excentricine and the recently isolated stephalonganines A, B and C, are reported. The target tricyclic compounds were prepared from isovanillin, employing a ring-closing metathesis approach towards the synthesis of a benzocyclodecane-type common intermediate; different modifications of
A new enantioselective synthesis of antiobesity drug lorcaserin
作者:Ganesh S. Ghotekar、Devidas A. More、Viswanadh Nalla、M. Muthukrishnan
DOI:10.1039/c9nj04234b
日期:——
A simple and efficient enantioselective synthesis of anti-obesity drug lorcaerin starting from easily accessible 3-chlorostyrene oxide has been described for the first time employing hydrolytic kinetic resolution as a source of chirality.
[EN] COMPOUNDS AND COMPOSITIONS FOR TREATING CNS DISORDERS<br/>[FR] COMPOSÉS ET COMPOSITIONS POUR LE TRAITEMENT DE TROUBLES DU SYSTÈME NERVEUX CENTRAL
申请人:BLUE OAK PHARMACEUTICALS INC
公开号:WO2022204150A1
公开(公告)日:2022-09-29
The present disclosure provides compounds and pharmaceutical compositions thereof. Methods of making and using the compounds are also provided. The compounds can be used to modulate such as activate TAAR1 and can be used for the treatment, prevention, diagnosis and/or management of various CNS disorders.
Enantioselective Desymmetrization of Bisphenol Derivatives via Ir-Catalyzed Allylic Dearomatization
作者:Ye Wang、Wen-Yun Zhang、Jia-Hao Xie、Zong-Lun Yu、Jia-Hao Tan、Chao Zheng、Xue-Long Hou、Shu-Li You
DOI:10.1021/jacs.0c09638
日期:2020.11.11
99% ee). The high efficiency of this reaction is exemplified by the short reaction time (30 min), low catalyst loading (down to 0.2 mol %), and ability to perform the reaction on a gram-scale. The total syntheses of (+)-tatanan B and (+)-tatanan C were also realized using this Ir-catalyzed allylic dearomatization reaction as a keystep.
天然产物中经常发现具有多个立体中心的螺环己二烯酮,但合成目标仍然具有挑战性。在此,我们报告了通过 Ir 催化的烯丙基脱芳构化反应对双酚衍生物进行对映选择性去对称化,以良好的产率(高达 90%)和出色的对映选择性(高达 99% ee)提供具有多达三个连续立体中心的螺环己二烯酮衍生物。该反应的高效率体现在反应时间短(30 分钟)、催化剂负载量低(低至 0.2 mol%)以及以克规模进行反应的能力。(+)-tatanan B 和 (+)-tatanan C 的全合成也是使用这种 Ir 催化的烯丙基脱芳构化反应作为关键步骤来实现的。