536-32-3Relevant academic research and scientific papers
Phosphine-Catalyzed [3+2] Annulation of β-Sulfonamido-Substituted Enones with Sulfamate-Derived Cyclic Imines
Shi, Wangyu,Zhou, Leijie,Mao, Biming,Wang, Qijun,Wang, Chang,Zhang, Cheng,Li, Xuefeng,Xiao, Yumei,Guo, Hongchao
supporting information, p. 679 - 685 (2019/01/24)
Phosphine-catalyzed [3+2] annulation of β-sulfonamido-substituted enones and sulfamate-derived cyclic imines has been developed, giving a series of imidazoline derivatives in moderate to excellent yields with good to excellent diastereoselectivities. A scale-up reaction worked well under mild reaction conditions. A possible mechanism was proposed on the basis of the results obtained.
Enantioselective Construction of Tetrahydroquinazoline Motifs via Palladium-Catalyzed [4 + 2] Cycloaddition of Vinyl Benzoxazinones with Sulfamate-Derived Cyclic Imines
Wang, Chang,Li, Yan,Wu, Yang,Wang, Qijun,Shi, Wangyu,Yuan, Chunhao,Zhou, Leijie,Xiao, Yumei,Guo, Hongchao
supporting information, p. 2880 - 2883 (2018/05/29)
A palladium-catalyzed enantioselective [4 + 2] cycloaddition reaction of vinyl benzoxazinones with sulfamate-derived cyclic imines is described, affording the tetrahydroquinazolines bearing several functional rings in high yields (up to 99% yield) with good to excellent diastereoselectivities and excellent enantioselectivities (up to 96% ee). This reaction represents the first Pd-catalyzed asymmetric decarboxylative cycloaddition of vinyl benzoxazinones with imines.
Aldehyde-Assisted Ruthenium(II)-Catalyzed C-H Oxygenations
Yang, Fanzhi,Rauch, Karsten,Kettelhoit, Katharina,Ackermann, Lutz
supporting information, p. 11285 - 11288 (2016/02/18)
Versatile ruthenium(II) complexes allow for site-selective C-H oxygenations with weakly-coordinating aldehydes. The challenging C-H functionalizations proceed with high chemoselectivity by rate-determining C-H metalation. The new method features an ample substrate scope, which sets the stage for the step-economical preparation of various bioactive heterocycles.
PREVENTIVE OR THERAPEUTIC AGENT FOR KIDNEY DISEASE
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Page 23-24, (2008/06/13)
The present invention relates to an agent for the prevention or treatment of a renal disease comprising as an active ingredient a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted alkyl group; R2 is a dialkylamino group, an alkyl group, a cycloalkyl group, an optionally substituted aryl group etc.; T is an oxygen atom, a sulfur atom etc.; Q is a hydrogen atom or an optionally substituted alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof which has an inhibitory effect on mesangial cell proliferation and a decreasing effect on protein excretion in urine, and are useful for preventing or treating of various renal diseases such as IgA nephropathy, diabetic nephropathy, nephritic syndrome and the like.
2-Hydroxy-4-isopropylbenzaldehyde, a potent partial tyrosinase inhibitor
Nihei, Ken-Ichi,Yamagiwa, Yoshiro,Kamikawa, Tadao,Kubo, Isao
, p. 681 - 683 (2007/10/03)
Chamaecin (2-hydroxy-4-isopropylbenzaldehyde) was synthesized and tested for its tyrosinase inhibitory activity. It partially inhibits the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase with an IC50 of 2.3 μ
Non-metallocene compounds, method for the production thereof and use of the same for the polymerisation of olefins
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, (2008/06/13)
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.
NOVEL BENSOPHENONE DERIVATIVES OR SALTS THEREOF
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Page 127, (2010/02/07)
A benzophenone derivative represented by the following formula: whereinR1 represents, for example, an optionally substituted heterocyclic group, or a substituted phenyl group; Z represents, for example, an alkylene group; R2 represents, for example, a carboxyl group optionally protected with alkyl;R3 represents, for example, an optionally protected hydroxyl group; R4 represents, for example, an optionally substituted cycloalkyloxy group; and R5 represents, for example, a hydrogen atom, ???or a salt thereof has anti-arthritic activity, inhibits bone destruction caused by arthritis, and provides high safety and excellent pharmacokinetics and thus is useful as therapeutic agent for arthritis. These compounds have inhibitory effect on AP-1 activity and are useful as preventive or therapeutic agent for diseases in which excessive expression of AP-1 is involved.
BENZOPYRAN COMPOUNDS USEFUL FOR TREATING INFLAMMATORY CONDITIONS
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Page 134, (2010/02/08)
The subject invention concerns methods and compounds that have utility in the treatment of a condition associated with cyclooxygenase-2 mediated disorders. Compounds of particular interest are benzopyrans and their analogs defined by formula (1). Wherein Z, X, R1, R2, R3, and R4 are as described in specification.
CHROMENE DERIVATIVES AS ANTI-INFLAMMATORY AGENTS
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Page 134, (2010/02/08)
The subject invention concerns methods and compounds that have utility in the treatment of a condition associated with cyclooxygenase-2 mediated disorders. Compounds of particular interest are benzopyrans and their analogs defined by formula (I). Wherein Z, X, R1, R2, R3, and R4 are as described in the specification.
5-AMIDINO-2-HYDROXYBENZENESULFONAMIDE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME AND INTERMEDIATES FOR THEIR PREPARATION
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, (2008/06/13)
The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group,
