From allylic alcohols to chiral tertiary homoallylic alcohol: palladium-catalyzed asymmetric allylation of isatins
作者:Xiang-Chen Qiao、Shou-Fei Zhu、Qi-Lin Zhou
DOI:10.1016/j.tetasy.2009.04.012
日期:2009.6
A palladium-catalyzedasymmetric allylation of isatins with allylicalcohols as an allyl donor was developed by using chiral spiro phosphoramidite ligands. A variety of chiral tertiary homoallylic alcohols 3-allyl-3-hydroxy-2-oxindoles were prepared directly from allylicalcohols in one step with excellent yields and moderate enantioselectivities. This represents the first catalytic asymmetric allylation
[Problems] A compound, which is useful as an active ingredient for a pharmaceutical composition, for example a pharmaceutical composition for treating constipation-type irritable bowel syndrome, atonic constipation and/or functional gastrointestinal disorder, is provided.
[Means for Solution] The present inventors have extensively studied compounds having TRPA1 channel activation activity, and confirmed that an indolinone compound has a TRPA1 channel activation activity, and thus completed the present invention. The indolinone compound of the present invention has a TRPA1 channel activation activity and can be used as an active ingredient of a pharmaceutical composition for preventing and/or treating constipation-type irritable bowel syndrome, atonic constipation and/or functional gastrointestinal disorder or the like.