Abstract:
The present invention provides a compound of the formula (I): wherein: R2 and R3 represent each independently a hydrogen atom or a hydrocarbon group; A represents an s-valent organic group; and s is an integer of 2-10. This nitrileoxide compound has stable and can be easily produced.
Abstract:
The present invention is directed to a process of making α-aminooxyketone and α-hydroxyketone compounds. The synthetic pathway generally involves reacting an aldehyde or ketone substrate and a nitroso substrate in the presence of a catalyst of the formula (IV): wherein Xa—Xc represent independently nitrogen, carbon, oxygen or sulfur and Z represents a 4 to 10-membered ring with or without a substituent and optionally a further step to convert the α-aminooxyketone compound formed to the α-hydroxyketone compound. The present invention results in α-aminooxyketone and α-hydroxyketone compounds with high enantioselectivity and high purity. The present invention is also directed to a catalytic asymmetric O-nitroso Aldol/Michael reaction. The substrates of this reaction are generally cyclic α,β-unsaturated ketone substrate and a nitroso substrate. This methodology generally involves reacting the cyclic α,β-unsaturated ketone substrate and the nitroso substrate in the presence of a proline-based catalyst, to provide a heterocyclic product.
Abstract:
A compound of the formula (III): wherein R21 is a hydrogen atom or an alkyl group; R22 is a hydrogen atom or an alkyl group; and R23 is a divalent organic group.
Abstract:
A stable and easily producible compound of the formula (I): wherein R1 represents a hydrocarbon group; and R2 and R3 represent each independently a hydrogen atom or a hydrocarbon group: provided that in at least one of R1, R2 and R3, at least one hydrogen atoms are substituted by a fluorine atom, and each of R1, R2 and R3 is attached via its carbon atom to a carbon atom to which a nitrileoxide group is attached.
Abstract:
The invention provides novel adamantane compounds having one of the following formulas: wherein: R1 and R3 are H, OH, alkyl, cycloalkyl, amino or aryl, and can be the same or different; R2 is H, NH2, alkyl, OH, COOH, amino, amide, or carbamate; R4-R8 are H, OH, NH2, alkyl, OH, COOH, ester, amino, amide, or alkyloxy, and can be the same or different; R9-R14 are H, alkyl, or phenyl, and can be the same or different; and wherein when any of R1-R8 is amino, the compounds are the free bases and their acid addition salts. The present invention also relates to compositions and methods for treating and/or preventing neurological and inflammatory disorders in a patient by administering a therapeutically effective amount of the compounds of formula (I), (II) or (III) and a pharmaceutically acceptable carrier.
Abstract translation:本发明提供具有下式之一的新型金刚烷化合物:其中:R 1和R 3是H,OH,烷基,环烷基,氨基或芳基,并且可以相同或不同; R 2是H,NH 2,烷基,OH,COOH ,氨基,酰胺或氨基甲酸酯; R 4 -R 8是H,OH,NH 2,烷基,OH,COOH,酯,氨基,酰胺或烷氧基,并且可以相同或不同; R9-R14是H,烷基或 苯基,并且可以相同或不同;并且其中当R 1 -R 8中的任何一个是氨基时,所述化合物是游离碱及其酸加成盐。本发明还涉及用于治疗和/或预防神经系统和/ 通过施用治疗有效量的式(I),(II)或(III)化合物和药学上可接受的载体,在患者中发炎。
Abstract:
The present invention provides a compound of the formula (I): wherein, R1 is a hydrogen atom or a hydrocarbon group; R2 is —R4—R5; R3 is —R4—R5 or —R4—R6; R4 is a divalent organic group; R5 is OH, SH, COOH or NHR9; R9 is a hydrogen atom or an alkyl group having 1-6 carbon atoms; and R6 is a hydrogen atom or an alkyl group having 1-6 carbon atoms.
Abstract:
A method of manufacturing nitrone compounds is provided. The method includes: providing a nitro compound; and performing a photoreaction of the nitro compound, a catalyst and an additive under visible light to obtain the nitrone compound.
Abstract:
The present invention provides a compound of the formula (I): wherein: R2 and R3 represent each independently a hydrogen atom or a hydrocarbon group; A represents an s-valent organic group; and s is an integer of 2-10. This nitrileoxide compound has stable and can be easily produced.