The restoration of damaged articular cartilage is a long-pursued goal in regenerative medicine. Chondrocyte-specific differentiation of mesenchymalstemcells (MSCs) may be an effective means of repairing damaged cartilage. We identified small molecule 6 with sulfonamide as an agent that promotes specific chondrogenic differentiation of human adipose-derived MSCs (hASCs). Unlike other chondrogenic
Oxidative Catalytic Spiroketalization Leading to Diastereoselective Synthesis of Spiro[benzofuran-2,1′-isochromene]s
作者:Jiang-Kai Qiu、Wen-Juan Hao、Guigen Li、Bo Jiang
DOI:10.1002/adsc.201701149
日期:2018.3.20
β‐alkynyl ketones bearing alkyl and aryl groups located at the α‐position of the carbonyl group could lead to highly diastereoselective spiro[chromane‐2,1′‐isochromene] derivatives. The reaction features broad substrate scope, mild oxidative catalytic conditions and excellent diastereoselectivity.
Use of Compounds for Inducing Differentiation of Mesenchymal Stem Cells to Chondrocytes
申请人:Hwang Ki Chul
公开号:US20130236969A1
公开(公告)日:2013-09-12
Use of a compound of Formula 1 for inducing differentiation of mesenchymal stem cells to chondrocytes, and a pharmaceutical composition for treating a cartilage disease, which includes chondrocytes in which differentiation from mesenchymal stem cells is induced by the compound of Formula 1, are provided. Differentiation of the mesenchymal stem cells treated with the compound of Formula 1 to chondrocytes is specifically induced, and thus the compound can be used to effectively treat a cartilage disease such as arthritis, cartilage damage, and a cartilage defect.
INK FOR SCRATCH COLORING AND SHEET WITH INVISIBLE INFORMATION PRINTED
申请人:Mitsubishi Paper Mills Limited
公开号:EP2096149A1
公开(公告)日:2009-09-02
Disclosed are a scratch color-developable ink comprising an electron-donating colorless or light-color dye precursor, an electron-accepting color developer and a varnish, wherein a solid particle component contained therein has an average particle diameter of 0.3 to 25 µm, a scratch color-developable ink comprising an electron-donating colorless or light-color dye precursor, an electron-accepting color developer and a varnish, wherein an azaphthalide compound is contained as the electron-donating colorless or light-color dye precursor, and an invisible information printed sheet obtained by printing invisible information on a support with the above scratch color-developable ink.
The above scratch color-developable ink makes invisible information visible easily by scratching with a finger nail although the color of an invisible information printed portion is hard to develop by frictional contact during usual handling, gives a high developed color intensity and is free from the occurrence of dust during the visualization of invisible information.
herein present an electrochemical method for the dehydrogenativecross-coupling of N-(4-hydroxyphenyl)-sulfonamides and 2-naphthols. This transformation provides a direct and scalable approach to a wide range of C1-symmetric 2,2′-bis(arenol)s with moderate to high yields under mild conditions. Preliminary attempts with the asymmetric variant of this reaction were also performed with ≤55% ee for the synthesis
我们在此提出了一种用于 N-(4-羟基苯基)-磺胺类药物和 2-萘酚脱氢交叉偶联的电化学方法。这种转化为在温和条件下以中高产率分析各种 C1 对称 2,2′-双(芳烃醇)提供了一种直接且可扩展的方法。还用 ≤55% ee 对该反应的不对称变体进行了初步尝试,以合成 2,2′-双(芳烃醇)。进行了对照实验以提出一种合理的反应机制。