This invention relates to deuterated forms of meclizine, and pharmaceutically acceptable salts or hydrates thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering meclizine and other Constitutive Androstane Receptor agonists or FGFR3 antagonists.
A simple and efficient method for the synthesis of isoquinolone and isocoumarin derivatives is reported. The method for the first time provides a one-step divergent synthesis of important isoquinolone and isocoumarin skeletons from benzoicacid by switching the coupling partners. In addition, a reliable mechanism has been proposed on the basis of experimental investigations, including kinetic isotope
Carboxyl-Directed Conjugate Addition of C−H Bonds to <i>α</i>
,<i>β</i>
-Unsaturated Ketones in Air and Water
作者:Wen-Jing Han、Fan Pu、Chao-Jun Li、Zhong-Wen Liu、Juan Fan、Xian-Ying Shi
DOI:10.1002/adsc.201701468
日期:2018.4.3
removable carboxyl group was developed as an effective protocol to synthesize ortho‐alkylated benzoic acids in a greener manner. Without any additives, satisfactory to excellent yields of the targeted products were achieved in neat water, and the process characterizes in mild reaction conditions (in air and water), simple operations, and broadsubstratescope. Noteworthy features of this method include
The Rh(III)-catalyzed C–H activation initiated cyclization of benzoicacids with electron-rich geminal-substituted vinyl acetates was described. The reaction was employed to prepare a range of 3-aryl and 3-alkyl substituted isocoumarins selectively.
Directing-Group-Controlled Ring-Opening Addition and Hydroarylation of Oxa/azabenzonorbornadienes with Arenes via C–H Activation
作者:Keyang Zhang、Ruhima Khan、Jingchao Chen、Xuexin Zhang、Yang Gao、Yongyun Zhou、Kangkui Li、Youxian Tian、Baomin Fan
DOI:10.1021/acs.orglett.0c00765
日期:2020.5.1
rhodium-catalyzed additionreaction of oxa/azabicylic alkenes with aromatic ketones and benzoic acids has been developed. The ketones and benzoic acids afforded different addition products when reacted with oxa/azabicyclic alkenes. The reaction between ketones and azabenzonorbornadienes furnished the ring-opening addition products. The reaction between benzoic acids and aza/oxabicyclic alkenes proceeded in