Process for the preparation of (pyridinylidene)-phthalides
申请人:——
公开号:US20030023094A1
公开(公告)日:2003-01-30
A process for the preparation of (pyridinylidene)-phthalides starting from 3-oxo-1,3-dihydro-isobenzofuran-1-carboxylic acids and pyridinecarbaldehydes, is described.
Gold‐catalyzed Cycloisomerization Reactions within Guanidinium M<sub>12</sub>L<sub>24</sub>Nanospheres: the Effect of Local Concentrations
作者:Sergio Gonell、Joost N. H. Reek
DOI:10.1002/cctc.201900089
日期:2019.3.6
cycloisomerization reactions have been explored using guanidinium functionalized M12L24 nanospheres that strongly encapsulate gold complexes functionalized with a sulfonate group through hydrogen bonds. As the M12L24 nanospheres can bind up to 24 gold complexes, the effect of local catalyst concentration on the reaction outcome can be easily evaluated. Also, the guanidinium groups of the sphere can
金催化的环异构化反应已经使用胍官能化的 M 12 L 24纳米球进行了探索,该纳米球强烈封装通过氢键用磺酸基官能化的金络合物。由于M 12 L 24纳米球可以结合多达24 个金配合物,因此可以轻松评估局部催化剂浓度对反应结果的影响。此外,球体的胍基团可以与底物的羧基发生弱相互作用,促进催化活性位点附近的底物的预组织。这两种效应都会影响金催化转化的选择性和速率。具有内部乙炔官能团的含乙酸盐底物可以在 M 12 L 24纳米球内有效环化,其中底物的预组织起着至关重要的作用。对于2-炔基苯甲酸,可以通过调节胍基功能化M 12 L 24纳米球中金催化剂的局部浓度来控制反应的选择性。
PHARMACEUTICAL COMPOSITION FOR INHIBITING AUTOPHAGY OF MOTOR NEURONS AND USE THEREOF
申请人:China Medical University
公开号:EP2992879A1
公开(公告)日:2016-03-09
A pharmaceutical composition for inhibiting the autophagy of motor neurons comprising an effective amount of an active ingredient selected from the group consisting of a compound of formula (I), a pharmaceutically acceptable salt of the compound, a pharmaceutically acceptable ester of the compound and combinations thereof:
wherein A is a C1-C5 alkyl optionally having one or more unsaturated bonds and optionally being substituted by one or more substituents selected from a group consisting of -OH, =O and C1-C3 alkyl; X is H, -OH,
Y is O or S and can optionally combine with A to form a five-membered ring; and R1 is H or a substituted or unsubstituted C1-C20 alkyl, wherein one or more -CH2- of the C1-C20 alkyl are optionally being replaced by -NH- or -O-.
一种抑制运动神经元自噬的药物组合物,包含有效量的活性成分,该活性成分选自由式(I)化合物、该化合物的药学上可接受的盐、该化合物的药学上可接受的酯及其组合组成的组:
其中 A 是 C1-C5 烷基,任选具有一个或多个不饱和键,并任选被一个或多个选自 -OH、=O 和 C1-C3 烷基的取代基取代;X 是 H、-OH、
Y 是 O 或 S,可选择与 A 结合形成五元环;R1 是 H 或取代或未取代的 C1-C20 烷基,其中 C1-C20 烷基的一个或多个 -CH2- 可选择被 -NH- 或 -O- 取代。
ANALGESICS. III. AMINOPHTHALIDYLALKANES
作者:JAMES W. WILSON、CHARLES L. ZIRKLE、ELVIN L. ANDERSON、JOHN J. STEHLE、GLENN E. ULLYOT