Enzyme-catalysed kinetic resolution of N,O-diacetyl derivatives of cyclic 1,3-amino alcohols
摘要:
Racemates of N.O-diacetyl derivatives of cis- and trans-2-aminomethylcyclopentanols 5 and 6 and cis- and trans-2-aminomethyleyelohexanols 7 and 8 were resolved through lipase-catalysed asymmetric O-deacylation at the (IR) stereogenic centre. The gram-scale resolutions of 5-8 were carried out with ethanol in di-iso-propyl ether in the presence of Novozym 435. The unreacted N.O-diacetyl compounds 5a-8a were transformed to the corresponding alcohols 5c-8c without loss of enantiopurity. (C) 2001 Elsevier Science Ltd. All rights reserved.
Hybrid Organic Lead Iodides: Role of Organic Cation Structure in Obtaining 1D Chains of Face-Sharing Octahedra vs 2D Perovskites
作者:Marie-Hélène Tremblay、Allyson Boyington、Sergei Rigin、Jie Jiang、John Bacsa、Khaled Al Kurdi、Victor N. Khrustalev、Ruth Pachter、Tatiana V. Timofeeva、Nathan Jui、Stephen Barlow、Seth R. Marder
DOI:10.1021/acs.chemmater.1c01642
日期:2022.2.8
new hybrid organic lead iodide crystal structures, 11 of which are FSLICs, are reported. The FSLIC structures can be further categorized according to the arrangement of neighboring wires. The optical properties of these materials are largely insensitive to the identity of the organic cations and to the resulting structural details. However, there is a correlation between the exciton energy and the pattern
Pyridine-3-carboxamide derivatives as CB1 inverse agonists
申请人:Hebeisen Paul
公开号:US20060229326A1
公开(公告)日:2006-10-12
The present invention relates to compounds of the formula
wherein X and R
1
to R
8
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with the modulation of CB1 receptors, such as obesity.