This invention provides cholesterol absorption inhibitors of Formula I:
and the pharmaceutically acceptable salts thereof, wherein R
12
is an alkyl, alkeny or alkynyl group mono- or poly-substituted with —OH, —COOH or a combination of —OH and —COOH, and R
9
contains an alkyl, alkeny or alkynyl group substituted with a heterocyclic ring, amino or sulfonyl. The compounds are useful for lowering plasma cholesterol levels, particularly LDL cholesterol, and for treating atherosclerosis and preventing atherosclerotic disease events.
HETEROACENE DERIVATIVE, TETRAHALOTERPHENYL DERIVATIVE, AND PROCESSES FOR PRODUCING THE SAME
申请人:Watanabe Makoto
公开号:US20090261300A1
公开(公告)日:2009-10-22
There are provided a heteroacene derivative having an excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process, and an oxidation-resistant organic semiconductor material using the same, as well as an organic thin film.
[Means for Resolution] A heteroacene derivative represented by the formula (1) is obtained by tetrametalation of a tetrahaloterphenyl derivative with a metalation agent and subsequent treatment of the resulting compound with reaction agents:
wherein the substituents R
1
to R
4
are the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom, an aryl group having 4 to 30 carbon atoms, an alkyl group having 3 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms; T
1
and T
2
are the same or different and each represents sulfur, selenium, tellurium, oxygen, phosphorus, boron, or aluminum; l and m each is an integer of 0 or 1; and rings A and B are the same or different and each has a structure represented by the following formulae (A-
1
) or (A-2).
A facile IrIII-catalyzed benzylicalkylation of arenes with alcohols has been accomplished via borrowing hydrogen (BH) pathways, and the newly developed spirocyclic NHC IrIII pincer complex (Cat A) serves as an efficient catalyst for this atom-economical and greener transformation. Some drug or bioactive molecules and functional material templates can be easily constructed by this strategy.
通过借氢 (BH) 途径实现了一种简单的 Ir III催化的芳烃与醇的苄基烷基化,新开发的螺环 NHC Ir III钳形配合物 (Cat A) 可作为这种原子经济和绿色转化的有效催化剂. 一些药物或生物活性分子和功能材料模板可以通过这种策略轻松构建。
Substituted imidazo[1,2-a]pyrazines as luciferase substrates
申请人:PROMEGA CORPORATION
公开号:US10308975B2
公开(公告)日:2019-06-04
Described are substituted imidazo[1,2-a]pyrazine compounds, which are coelenterazine analogs, kits comprising the compounds, and methods of using the compounds for the detection of luminescence in luciferase-based assays. Also described are methods for making the compounds, such as a method using aminopyrazine acetophosphonates as synthesis intermediates.