875444-08-9Relevant articles and documents
Synthesis and crystal structure of (4S,5R)-5-[3,5-BIS(trifluoromethyl) phenyl]-4-methyl-1,3-oxazolidin-2-one
Cui, Hong,Zhao, Qing Jie,Chen, Fa Pu,Chai, Xiao Yun,Zou, Yan,Hu, Hong Gang,Jin, Yong Sheng,Yu, Shi Chong
, p. 8043 - 8046 (2013)
The crystal structure of the (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-4- methyl-1,3-oxazolidin-2-one has been determined by single crystal X-ray diffraction method. The compound crystallizes in the monoclinic system, space group P2(1) with a = 11.867(4) ?, b = 5.6968(19) ?, c = 20.258(7) ?, α = 90.00°, β = 91.866(4)°, γ = 90.00°, Z = 4, V = 1368.8(8) ?3, Dx = 1.520 Mg/m3, F (000) = 632, μ(MoKα) = 0.157 mm-1, R = 0.0562 and wR = 0.1744 for 3675 reflections with I > 2σ(I). X-Ray analysis reveals that the benzene and oxazolidin rings are non-coplanar. The oxazolidin ring displays a twist conformation. The two molecules interact with each other by two strong N-H···O hydrogen bonds. Herein, we report the synthesis and crystal structure of (4S,5R)-5-[3,5- bis(trifluoromethyl)phenyl]-4-methyl-1,3-oxazolidin-2-one.
Chiral purification method of drug intermediate
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Page/Page column 7-13, (2020/06/02)
The invention provides a chiral purification method of a drug intermediate. The chiral purification method of the drug intermediate comprises the following steps: (1) adding a low-optical-purity compound as shown in a formula A4 into a solvent A, carrying
Crystal form of oxazolidinone intermediate of Ana Qubo and preparation method thereof
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Paragraph 0030-0033, (2017/07/11)
The invention relates to Ana Qubo, and particularly relates to a crystal form of an oxazolidinone intermediate of Ana Qubo and a preparation method thereof. An angle of reflection 2theta of an X-ray powder diffraction pattern of the crystal form of the ox
Can We Make Small Molecules Lean? Optimization of a Highly Lipophilic TarO Inhibitor
Mandal, Mihirbaran,Tan, Zheng,Madsen-Duggan, Christina,Buevich, Alexei V.,Caldwell, John P.,Dejesus, Reynalda,Flattery, Amy,Garlisi, Charles G.,Gill, Charles,Ha, Sookhee Nicole,Ho, Ginny,Koseoglu, Sandra,Labroli, Marc,Basu, Kallol,Lee, Sang Ho,Liang, Lianzhu,Liu, Jenny,Mayhood, Todd,McGuinness, Debra,McLaren, David G.,Wen, Xiujuan,Parmee, Emma,Rindgen, Diane,Roemer, Terry,Sheth, Payal,Tawa, Paul,Tata, James,Yang, Christine,Yang, Shu-Wei,Xiao, Li,Wang, Hao,Tan, Christopher,Tang, Haifeng,Walsh, Paul,Walsh, Erika,Wu, Jin,Su, Jing
, p. 3851 - 3865 (2017/05/19)
We describe our optimization efforts to improve the physicochemical properties, solubility, and off-target profile of 1, an inhibitor of TarO, an early stage enzyme in the biosynthetic pathway for wall teichoic acid (WTA) synthesis. Compound 1 displayed a TarO IC50 of 125 nM in an enzyme assay and possessed very high lipophilicity (clogP = 7.1) with no measurable solubility in PBS buffer. Structure-activity relationship (SAR) studies resulted in a series of compounds with improved lipophilic ligand efficiency (LLE) consistent with the reduction of clogP. From these efforts, analog 9 was selected for our initial in vivo study, which in combination with subefficacious dose of imipenem (IPM) robustly lowered the bacterial burden in a neutropenic Staphylococci murine infection model. Concurrent with our in vivo optimization effort using 9, we further improved LLE as exemplified by a much more druglike analog 26.
Method for preparing arene beta-amino alcohol of optical voidness
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Paragraph 0187; 0188; 0189, (2016/10/08)
The invention discloses a method for preparing arene beta-amino alcohol of optical voidness. The method is characterized by comprising the following steps that a D or L-amino acid initial material reacts with benzyl chloroformate CBz-Cl or BOC acid anhydr
CATALYST AND METHOD FOR PRODUCING OPTICALLY ACTIVE ANTI-1,2-NITROALKANOL COMPOUND
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, (2016/01/12)
A catalyst, which is obtained by mixing a compound expressed by the following Structural Formula (1), a nitroalkane compound, a neodymium-containing compound, a sodium-containing compound, and a carbon structure:
NOVEL OXAZOLIDINONE DERIVATIVE AS CETP INHIBITOR, ITS PREPARATION METHOD, AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
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, (2014/10/15)
Disclosed are a novel oxazolidinone derivative exhibiting inhibitory activity against CETP, a preparation method thereof, and a pharmaceutical composition comprising the same. Exhibiting excellent inhibitory activity against CETP, the oxazolidinone deriva
Self-assembling neodymium/sodium heterobimetallic asymmetric catalyst confined in a carbon nanotube network
Ogawa, Takanori,Kumagai, Naoya,Shibasaki, Masakatsu
, p. 6196 - 6201 (2013/07/19)
Confined cat works better: A self-assembling heterobimetallic catalyst, comprised of a Nd/Na/amide ligand confined in an entangled multiwalled carbon nanotube (MWNT) network, outperforms the unconfined catalyst in anti-selective catalytic asymmetric nitroaldol reactions. The confined catalyst could be used repeatedly through simple filtration, and was applied to a concise enantioselective synthesis of anacetrapib. Copyright
ANTAGONISTS OF PROSTAGLANDIN D2 RECEPTORS
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Page/Page column 132, (2009/10/21)
Described herein are compounds that are antagonists of PGD2 receptors. Also described are pharmaceutical compositions and medicaments that include the antagonists of PGD2 receptors described herein, as well as methods of using such a
CYCLIC DIARYL ETHER COMPOUNDS AS ANTAGONISTS OF PROSTAGLANDIN D2 RECEPTORS
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Page/Page column 121, (2009/10/09)
Described herein are compounds that are antagonists of PGD2 receptors. Also described are pharmaceutical compositions and medicaments that include the antagonists of PGD2 receptors described herein, as well as methods of using such antagonists of PGD2 receptors, alone and in combination with other compounds, for treating respiratory, cardiovascular, and other PGD2-dependent or PGD2-mediated conditions or diseases.