摘要:
The object of the present invention is to provide a compound which is useful as a production intermediate of pyrazine carboxamide derivative such as 6-fluoro-3-hydroxy-2-pyrazine carboxamide. The present invention provides a pyrazino[2,3-d]isoxazole derivative represented by the formula (I): wherein X represents a halogen atom, a hydroxyl group or a sulfamoyloxy group, and Y represents —C(═O)R or —CN; wherein R represents a hydrogen atom, an alkoxy group an aryloxy group, an alkyl group, an aryl group or an amino group.
摘要:
The object of the present invention is to provide a compound which is useful as a production intermediate of pyrazine carboxamide derivative such as 6-fluoro-3-hydroxy-2-pyrazine carboxamide. The present invention provides a pyrazino[2,3-d]isoxazole derivative represented by the formula (I): wherein X represents a halogen atom, a hydroxyl group or a sulfamoyloxy group, and Y represents —C(═O)R or —CN; wherein R represents a hydrogen atom, an alkoxy group an aryloxy group, an alkyl group, an aryl group or an amino group.
摘要:
Provided are a method for manufacturing 3,4,5-tricaffeoylquinic acid, which can produce 3,4,5-tricaffeoylquinic acid with high efficiency by a simple operation in a short process using inexpensive raw materials, and intermediate compounds. The method for manufacturing 3,4,5-tricaffeoylquinic acid of the invention includes at least Step (1) of allowing a compound represented by Formula (1) or a compound represented by Formula (2) to react with a compound represented by Formula (4); and Step (2) of deprotecting the product obtained in Step (1), and producing 3,4,5-tricaffeoylquinic acid: