1138033-55-2Relevant academic research and scientific papers
Catalytic Asymmetric [4 + 1] Annulation of Sulfur Ylides with Copper-Allenylidene Intermediates
Wang, Qiang,Li, Tian-Ren,Lu, Liang-Qiu,Li, Miao-Miao,Zhang, Kai,Xiao, Wen-Jing
, p. 8360 - 8363 (2016)
The first copper-catalyzed asymmetric decarboxylative [4 + 1] cycloaddition of propargylic carbamates and sulfur ylides was successfully developed. This strategy led to a series of chiral indolines with synthetically flexible alkyne groups in good yields and with high enantio- and diastereoselectivities (up to 99% yield, 98% ee, and >95:5 dr). A possible mechanism and stereoinduction mode with copper-allenylidenes were proposed as the possible dipolar intermediate.
5-MEMBERED HETEROCYCLIC COMPOUND
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Page/Page column 79, (2010/07/03)
Provided is a compound having a superior acid secretion suppressive action, which shows an antiulcer activity and the like. A compound represented by the formula (I) or a salt thereof: wherein ring A is a saturated or unsaturated 5-membered heterocycle co
5-Membered heterocyclic compound
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Page/Page column 41, (2009/07/03)
The present invention provides 5-membered heterocycle compounds represented by the following general formula (I): The present compounds have a superior acid secretion inhibitory effect, and shows an antiulcer activity and the like.
