198630-93-2Relevant articles and documents
Palladium-Catalyzed [4 + 3] or [2 + 2 + 3] Annulation via C-H Activation and Subsequent Decarboxylation: Access to Heptagon-Embedded Polycyclic Aromatic Hydrocarbons
Yang, Xiumei,Chen, Xiahong,Xu, Yankun,Zhang, Minghao,Deng, Guobo,Yang, Yuan,Liang, Yun
supporting information, p. 2610 - 2615 (2021/04/12)
The construction of a seven-membered ring in the polycyclic aromatic hydrocarbon skeleton remains a notoriously difficult but attractive challenge. Herein a novel palladium-catalyzed [4 + 3] decarboxylative annulation of 2-iodobiphenyls with 2-(2-halophenyl)acrylic acids is reported, which provides an efficient approach for assembling various tribenzo[7]annulenes via a C-H activation and decarboxylation process. Moreover, tribenzo[7]annulenes can be also synthesized via a [2 + 2 + 3] decarboxylative annulation strategy by employing readily available 1,2-halobenzenes, phenylboronic acids, and 2-(2-halophenyl)acrylic acids.
Internal Nucleophilic Catalyst Mediated Cyclisation/Ring Expansion Cascades for the Synthesis of Medium-Sized Lactones and Lactams
Lawer, Aggie,Rossi-Ashton, James A.,Stephens, Thomas C.,Challis, Bradley J.,Epton, Ryan G.,Lynam, Jason M.,Unsworth, William P.
supporting information, p. 13942 - 13947 (2019/08/28)
A strategy for the synthesis of medium-sized lactones and lactams from linear precursors is described in which an amine acts as an internal nucleophilic catalyst to facilitate a novel cyclisation/ring expansion cascade sequence. This method obviates the n
Evaluation and synthesis of polar aryl- and heteroaryl spiroazetidine-piperidine acetamides as ghrelin inverse agonists
Orr, Suvi T. M.,Beveridge, Ramsay,Bhattacharya, Samit K.,Cameron, Kimberly O.,Coffey, Steven,Fernando, Dilinie,Hepworth, David,Jackson, Margaret V.,Khot, Vishal,Kosa, Rachel,Lapham, Kimberly,Loria, Paula M.,McClure, Kim F.,Patel, Jigna,Rose, Colin,Saenz, James,Stock, Ingrid A.,Storer, Gregory,Von Volkenburg, Maria,Vrieze, Derek,Wang, Guoqiang,Xiao, Jun,Zhang, Yingxin
supporting information, p. 156 - 161 (2015/03/04)
Several polar heteroaromatic acetic acids and their piperidine amides were synthesized and evaluated as ghrelin or type 1a growth hormone secretagogue receptor (GHS-R1a) inverse agonists. Efforts to improve pharmacokinetic and safety profile was achieved