55942-61-5Relevant articles and documents
Azacyclo diketone compound and preparation method thereof
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, (2020/06/17)
The invention provides an azacyclo diketone compound, which is a compound represented by the following structure defined in the specification, or a pharmaceutically acceptable salt thereof. The invention provides a compound having an inhibitory activity on influenza (flu) virus proliferation, particularly on influenza-related cap-dependent endonuclease to inhibit influenza virus proliferation so as to treat or prevent influenza. The present invention relates to a substituted azacyclo diketone compound having inhibitory activity on cap-dependent endonuclease, and a pharmaceutical composition containing the substituted azacyclo diketone compound.
A facile synthesis of substituted 5,11-dihydro[1]benzoxepino[3,4-b]pyridines
Inoue, Kunimi,Sugaya, Toru,Ogasa, Takehiro,Tomioka, Shinji
, p. 113 - 116 (2007/10/03)
5-Amino-5,11-dihydro[1]benzoxepino[3,4-b]pyridines (1) show anti-ulcer and antiarrhythmic activity. An efficient method for the preparation of a key intermediate, furo[3,4-b]pyridin-5(7H)-one (4), and the facile synthesis of 1 were described. The reduction of quinolinic anhydride (5) with sodium borohydride in the presence of acetic acid regioselectively gave the lactone 4. Lactone 4 was then reacted with substituted phenols under basic conditions and the resultant products, 2-(phenoxymethyl)-3-pyridinecarboxylic acids (3), underwent Friedel-Crafts cyclizations to produce the 5,11-dihydro[1]benzoxepino[3,4-b]pyridin-5-ones (2). Compounds 2 were then converted to imines with amines and successively reduced with zinc in acetic acid to the desired compounds 1.
Nonsteroidal antiinflammatory agents. IV. Syntheses of pyridobenzoxepin, pyridobenzothiepin and their acetic acid derivatives
Tagawa,Kubo,Ishikawa
, p. 3515 - 3521 (2007/10/02)
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