- METHODS FOR PREPARING SUBSTITUTED CHROMANONE DERIVATIVES
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The present disclosure relates to a method for preparing a compound of formula (I). In the compound of formula (I), n may be 0 to 5 and each of R1, R2, R3, and R4 may be independently selected from the group consisting of H, -O-Alkyl, halo, alkyl, -CN, or -NO3.
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- Synthesis method of agaronoprazan
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The method comprises the following steps: preparing 4 - hydroxyl - N, N, 2 - trimethyl - 1H - benzimidazole -6 - formamide. Preparation of (S)-5, 7 - difluoro -3, 4 - dihydro - 2H - chromene -4 - alcohol, and last photoreaction: Mitsunobu ((s)-4 - ((5, 7
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- New method for preparation of chromanone derivatives
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The present invention relates to a new method for preparing 5,7-difluorochroman-4-one derivatives. According to the present invention, an extra purification process is not needed; manufacturing costs are low; and industrial mass production is possible by
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- PHARMACEUTICALLY ACTIVE 6-N-SUBSTITUTED BENZIMIDAZOLE DERIVATIVES
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The invention provides compounds of the formula (0), in which the substituents and symbols are as defined in the description. The compounds inhibit the secretion of gastric acid.
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- Chromane Substituted Benzimidazole Derivatives
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This invention relates to compounds of the formula (I): or a pharmaceutically acceptable salt thereof, wherein: A, B, X, R1, R2, R3, R4, R5, R6, R7 and R8 are each as
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Page/Page column 33
(2010/11/27)
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- Quinoxaline compounds
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Certain amidophenyl-sulfonylamino-quinoxaline compounds are CCK2 modulators useful in the treatment of CCK2 mediated diseases.
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Page/Page column 31
(2008/06/13)
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