SUBSTITUTED BENZOTHIOPHENYL DERIVATIVES AS GPR40 AGONISTS FOR THE TREATMENT OF TYPE II DIABETES
申请人:Janssen Pharmaceutica NV
公开号:US20170291908A1
公开(公告)日:2017-10-12
Disclosed are compounds, compositions and methods for treating of disorders that are affected by the modulation of the GPR40 receptor. Such compounds are represented by Formula (I) as follows:
wherein U
1
, U
2
, U
3
, R
1
, R
2
, Z, and W are defined herein.
Environmentally benign, one-pot synthesis of pyrans by domino Knoevenagel/6π-electrocyclization in water and application to natural products
作者:Ene Jin Jung、Byung Ho Park、Yong Rok Lee
DOI:10.1039/c0gc00265h
日期:——
In water medium, environmentally benign, facile, and efficient synthesis of pyrans was achieved in good yields by the reactions of a variety of cyclic 1,3-dicarbonyls with several α,β-unsaturated aldehydes. The key strategy was a formal [3+3] cycloaddition by domino Knoevenagel/6Ï- electrocyclization. This methodology was applied to the synthesis of biologically interesting pyranocoumarin, pyranoquinolinone, and pyranonaphthoquinone derivatives along with selected natural and non-natural products.
An efficient synthesis of 2H-chromenones and 2-hydroxyl-2H-chromenones derivatives has been developed from 1,3-dicarbonyls and α,β-unsaturated aldehydes by a controllable regioselective domino cyclization reaction under catalysis of different lipases. 2H-Chromenones derivatives were synthesized by bovine pancreatic lipase (BPL) in acetonitrile, while lipase from Pseudomonas fluorescens (PFL) can catalyze
为2个的有效的合成ħ -chromenones和2-羟基-2- ħ -chromenones衍生物已经从1,3-二羰基和α,β不饱和醛通过在不同脂肪酶催化的可控区域选择性多米诺环化反应的发展。2 H- Chromenones衍生物是由牛胰脂肪酶(BPL)在乙腈中合成的,而荧光假单胞菌(PFL)的脂肪酶则可以在二氯甲烷中以中等至高收率催化2-hydroxyl-2 H -chromenones衍生物的合成。
A New Route to the Synthesis of Pyranoflavone and Pyranochalcone Natural Products and their Derivatives
作者:Yong Rok Lee、Do Hoon Kim
DOI:10.1055/s-2006-926294
日期:——
The total synthesis of biologically active pyranoflavone natural products 1 and 2 was carried out starting from 2H-pyran. The synthesis of pyranochalcone natural products, lonchocarpin (9) and 4-hydroxylonchocarpin (10), and their derivatives 30-32 is described. This synthetic route also provides biologically interesting materials such as β-tubaic acid (24), desmethyl isoencecalin (25), and isoencecalin (27).
Preparation of MOF catalysts and simultaneously modulated metal nodes and ligands <i>via</i> a one-pot method for optimizing cycloaddition reactions
作者:Peng Wang、Sha Wang、Wenlei Zhang、Xiaohan Li、Zhida Gu、Wenze Li、Shuang Zhao、Yu Fu
DOI:10.1039/d0nj01086c
日期:——
one-pot method that simultaneously adjusts the metal nodes and ligands. The pore environments, Lewis acids (LAs) and Brønsted acids (BAs), were controlled when BA groups were used to modify the ligands and monoacids were used to adjust the metal nodes. The catalysts exhibited remarkable catalytic performance in cycloaddition reactions.