描述了用于取代喹啉和萘不对称氢化的对映富钼预催化剂的合成。三类具有手性取代基的钳形配体被评估为钼催化氢化反应中的支持配体,其中恶唑啉亚氨基(吡啶)螯合物被确定为最佳配体。一系列 2,6-二取代的喹啉被氢化成对映富集的十氢喹啉,具有高非对映选择性和对映选择性。对于喹啉衍生物,根据环取代观察到碳环和杂环的选择性氢化。光谱和机理研究确定钼 η 6-芳烃配合物作为催化剂的静止状态,部分氢化是由于底物在完全还原之前从钼的配位层解离而产生的。基于由底物和手性配体之间的空间相互作用确定的芳烃前手性面各自配位的相对能量,而不是通过杂原子的预配位,提出了立体化学模型。
SILICON BASED DRUG CONJUGATES AND METHODS OF USING SAME
申请人:BlinkBio, Inc.
公开号:US20170202970A1
公开(公告)日:2017-07-20
Described herein are silicon based conjugates capable of delivering one or more payload moieties to a target cell or tissue. Contemplated conjugates may include a silicon-heteroatom core, one or more optional catalytic moieties, a targeting moiety that permits accumulation of the conjugate within a target cell or tissue, one or more payload moieties (e.g., a therapeutic agent or imaging agent), and two or more non-interfering moieties covalently bound to the silicon-heteroatom core.
[EN] COMPOUNDS AS HEPATITIS C VIRUS (HCV) INHIBITORS AND USES THEREOF IN MEDICINE<br/>[FR] COMPOSÉS EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C (VHC) ET LEURS UTILISATIONS EN MÉDECINE
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2015197028A1
公开(公告)日:2015-12-30
Provided herein are compounds of Formula (I), or a stereoisomer, a geometric isomer, an enantiomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof, which are used in the treatment of HCV infection or hepatitis C. Provided herein also are pharmaceutical compositions containing such compounds and methods of using the compound of the present invention or pharmaceutical compositions thereof to treat HCV infection or hepatitis C.
The present invention relates to a nitrogen-containing fused ring compound, a preparation method and use thereof. Specifically, the present invention relates to a compound having the structure of Formula (X), a stereoisomer, tautomer or mixture thereof, a pharmaceutically acceptable salt, co-crystal, polymorph or solvate thereof, or a stable isotope derivative, metabolite or prodrug thereof. The compound of the invention may have the structure of Formula (I) or Formula (II). These compounds are useful for the treatment of an abnormal cell proliferation disease (e.g., cancer).
R-L-R3 (X)
This article had studied the thermal characterization of the raw material and different fluconazole crystals, obtained through recrystallization with different solvents using thermoanalytical techniques (TG, DTA, DSC-50, DSC Photovisual, DSC-60) and Pyr-GC/MS. The results confirmed that the fluconazole volatilizes without decomposition until 250 °C. Pyr-GC/MS showed hexachlorobenzene like impurities in fluconazole raw material.
Nitrogen containing heterocyclic compounds and medicines containing the same
申请人:Ozaki Fumihiro
公开号:US20070293496A1
公开(公告)日:2007-12-20
Compounds represented by the following general formula:
[wherein X
1
, X
2
, X
3
and X
4
each independently represent a single bond, C
1-6
alkylene, etc.; A
2
represents optionally substituted phenyl, etc.; A
1
represents an optionally substituted 5- to 7-membered heterocyclic group containing —C(=Q
1
)- (wherein Q
1
represents oxygen, sulfur or ═N—R
11
(wherein R
11
represents hydrogen or C
1-6
alkyl)) and nitrogen, etc.; and Z
1
represents piperidin-diyl, etc.],
salts thereof and hydrates of the foregoing.