117550-42-2Relevant articles and documents
Preparation method of pyridine quinazoline intermediate (by machine translation)
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Paragraph 0011; 0012; 0015; 0016; 0019; 0020; 0023; 0024, (2020/02/14)
The invention discloses a preparation method of a pyridine quinazoline intermediate, wherein: the 2 - preparation method of the, pyridine quinazoline intermediate comprises, the following steps, of: performing, substitution reaction and 3 - ring-forming r
Imidazopyridine compounds and processes for preparation thereof
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, (2008/06/13)
The invention relates to an imidazopyridine compound of the formula: STR1 wherein R1 is lower alkynyl, lower alkynyloxy(lower)alkyl or N,N-di(lower)alkylamino(lower)alkynyl, R2 is lower alkyl, R3 is mono (or di or tri)-phenyl(lower)alkyl substituted by one or more substituent(s) selected from cyano, carbamoyl, mono (or di or tri(phenyl(lower)alkylamino, acylamino, carboxy, esterified carboxy, hydroxy, hydroxy(lower)alkyl, acyloxy(lower)alkyl, acyloxy, mono (or di or tri)phenyl(lower)alkoxy, lower alkoxy(lower)alkoxy, tetrahydropyranyloxy, and acylamino(lower)alkyl or mono (or di or tri) phenyl(lower)alkyl substituted by lower alkyl and one additional substituent selected from hydroxy(lower)alkyl, amino, N-lower alkyl-N-acylamino, mono (or di or tri)phenyl(lower)alkylamino, acylamino and lower alkylamino, and R4 is hydrogen or lower alkyl, and a pharmaceutically acceptable salt thereof, useful in the treatment of ulcers.