Compounds of the formula ##STR1## have been found to inhibit gastric secretion in mammalian species.
发现具有通式##STR1##的化合物能够抑制哺乳动物的胃分泌。
Room-temperature phosphorescent γ-cyclodextrin-cucurbit[6]uril-cowheeled [4]rotaxanes for specific sensing of tryptophan
作者:Xingke Yu、Wenting Liang、Qinfei Huang、Wanhua Wu、Jason J. Chruma、Cheng Yang
DOI:10.1039/c9cc00097f
日期:——
The room temperature phosphorescence of iodine-substituted-γ-CD-CB[6]-cowheeled[4] rotaxanes was quenched specifically by tryptophan among plasma amino acids.
[EN] PROCESS FOR REMOVAL OF ACID GASES FROM A FLUID STREAM<br/>[FR] PROCÉDÉ D'ÉLIMINATION DE GAZ ACIDES CONTENUS DANS UN COURANT DE FLUIDE
申请人:BASF SE
公开号:WO2021047928A1
公开(公告)日:2021-03-18
A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C1-C3-alkyl; R2 is C1-C3-alkyl; R3 is selected from hydrogen and C1-C3-alkyl; R4 is selected from hydrogen and C1-C3-alkyl and n is an integer in the range of 1 to 4.
Enantiodifferentiation in the Photoisomerization of (<i>Z</i>,<i>Z</i>)-1,3-Cyclooctadiene in the Cavity of γ-Cyclodextrin–Curcubit[6]uril-Wheeled [4]Rotaxanes with an Encapsulated Photosensitizer
作者:Zhiqiang Yan、Qinfei Huang、Wenting Liang、Xingke Yu、Dayang Zhou、Wanhua Wu、Jason J. Chruma、Cheng Yang
DOI:10.1021/acs.orglett.7b00057
日期:2017.2.17
capping moieties at the ground and excited states were interrogated by NMR, UV–vis, circular dichroism, and fluorescence spectroscopic studies. In situ photoisomerization of (Z,Z)-1,3-cyclooctadiene sensitized in the cavity of these [4]rotaxanes afforded (Z,E)-1,3-cyclooctadiene in up to 15.3% ee, which represents the highest level of enantiodifferentiation obtained to date for this supramolecular photochirogenesis