6520-83-8Relevant articles and documents
Imidazo[1,2-a]pyridine derivatives, methods of preparing the same and use thereof
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Paragraph 0138-0139, (2017/10/31)
The present invention relates to an imidazo[1,2-a]pyridine derivative, and more specifically, to an imidazo[1,2-a]pyridine derivative having excellent gastric acid secretion inhibitory activity, a method of preparing the same, and a use thereof. The imidazo[1,2-a]pyridine derivative according to the present invention has gastric acid secretion inhibitory activity, and can be usefully applied for preventing or treating gastrointestinal inflammatory diseases or gastric-related diseases.(AA) Control group(BB) Example 6(CC) Example 7(DD) Embodiment 11COPYRIGHT KIPO 2017
Efficient total synthesis of AI-77-B, a gastroprotective substance from Bacillus pumilus AI-77
Hamada,Hara,Kawai,Kohno,Shioiri
, p. 8635 - 8652 (2007/10/02)
First total synthesis of AI-77-B (1), a gastroprotective substance from Bacillus pumilus AI-77, was achieved in a stereoselective and convergent manner. In this synthesis, the dihydroisocoumarin part 2 was constructed in one step through 1,2-addition of the benzylic anion 17b to Boc-L-leucinal 7b. The hydroxy amino acid 4 was elaborated from (R)-glutamic acid in a highly stereoselective manner. Condensation of 2·HCl and 4, intramolecular Pinner reaction, followed by mild hydrolysis afforded AI-77-B (1).
Synthesis of Gerberinol-I
Chatterjea, J. N.,Singh, K. R. R. P.,Jha, I. S.,Prasad, Y.,Shaw, S. C.
, p. 796 - 798 (2007/10/02)
The synthesis of 4-hydroxy-5-methylcoumarin (II) is described.The compound (II) affords gerberinol-I (I) on treatment with formaldehyde.The synthetic sample of I is identical (m.m.p. and co-IR) with an authentic I.