Preparation of the eight monohydroxydibenz[b,f][1,4]oxazepin-11(10H)-ones
作者:Keith Brewster、Raymond J. Clarke、John M. Harrison、Thomas D. Inch、David Utley
DOI:10.1039/p19760001286
日期:——
The eight possible isomeric monohydroxydibenz[b,f][1,4]oxazepin-11(10H)-ones have been prepared and their mass spectra determined. With the exception of the 7-hydroxy-derivative the fragmentation patterns of the isomers were similar, although the relative line intensities allowed distinctions between the isomers to be made. The syntheses of several irritant monomethoxydibenz[b,f][1,4]oxazepines are
Stereoselective Oxidative Mannich Reaction of Ketones with Dihydrodibenzo‐Oxazepines via a Merger of Photoredox‐/Electro‐Catalysis with Organocatalysis
Goodbye Tear Gas: The merger of Proline catalysis with organic photoredoxcatalysis or electrocatalysis provides an alternative strategy for synthesizing enantioenriched dihydrodibenzo[b,f][1,4]oxazepine derivatives by eliminating the direct use of toxic CR gas. Good yields and excellent stereoselectivities have been achieved under mild reaction conditions involving abundant and green sources.
The invention relates to tricyclic heterocycles, or pharmaceutically-acceptable salts thereof, which possess anti-hyperalgesic properties. The invention also relates to processes for the manufacture of said tricyclic heterocycles; and to novel pharmaceutical compositions containing them.
The invention provides a tricyclic heterocycle of the formula I
wherein X is oxy, thio, sulphinyl, sulphonyl, amino, (1-4C)alkylamino or methylene;
Y is carbonyl or methylene;
each R¹ includes hydrogen and halogeno;
each of m and n is 1 or 2;
each of A¹ and A² is a direct link, alkylene, alkenylene or alkynylene;
Ar is phenylene which may optionally bear one or two substituents; and
G is carboxy, 1H-tetrazol-5-yl or a group of the formula:--CONH-SO₂R²
wherein R² is (1-4C)alkyl, benzyl or phenyl;
or a pharmaceutically-acceptable salt thereof.
本发明涉及具有抗镇痛特性的三环杂环或其药学上可接受的盐类。本发明还涉及制造所述三环杂环的工艺;以及含有它们的新型药物组合物。
本发明提供了式 I 的三环杂环
其中 X 是氧基、硫代、亚砜基、磺酰基、氨基、(1-4C)烷基氨基或亚甲基;
Y 是羰基或亚甲基
每个 R¹ 包括氢和卤素;
m 和 n 各为 1 或 2;
A¹ 和 A² 各为直链、亚烷基、亚烯基或亚炔基;
Ar 是亚苯基,可选择带有一个或两个取代基;以及
G 是羧基、1H-四唑-5-基或一个式中的基团:--CONH-SO₂R²
其中R²是(1-4C)烷基、苄基或苯基;
或其药学上可接受的盐。
BREWSTER K.; CLARKE R. J.; HARRISON J. M.; INCH T. D.; UTLEY D., J. CHEM. SOC. PERKIN TRANS., PART 1 <JCPK-BH>, 1976, NO 12, 1286-1290
作者:BREWSTER K.、 CLARKE R. J.、 HARRISON J. M.、 INCH T. D.、 UTLEY D.