90531-74-1Relevant academic research and scientific papers
A compound and its preparation method, use (by machine translation)
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Paragraph 0078; 0081; 0084, (2019/07/01)
The present invention provides a compound and its preparation method, use. A compound, having the general formula (I) of the structure: Wherein R1 , R2 , R3 , R4 And R5 In at least one is a amino, the remaining are independently selected from H, halogen, heteroatom substituted or not substituted C1 - 20 Hydrocarbyl. The compound having an active group - COF, easy and cellulose surface active groups (hydroxyl, amino) reaction, and itself is not easy to hydrolyze, therefore made of azo dye in water and it has strong stability, and the dyeing ability. (by machine translation)
FUROISOQUINOLINE DERIVATIVE AND USE THEREOF
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Page/Page column 72, (2010/02/11)
The present invention provides a compound represented by the formula ???wherein A represents (1) a bond, (2) a group represented by the formula -CRa=CRb- (Ra and Rb each represent a hydrogen atom or C1-6 alkyl) and the like; R1 represents (1) cyano or (2) an optionally esterified or amidated carboxyl group; R2 represents(1) a hydrogen atom, (2) an optionally substituted hydroxy group,(3) an optionally substituted amino group and the like; R3 and R4 each represent a hydrogen atom and the like; R5 represents a hydrogen atom and the like; R6 represents an optionally substituted hydroxy group and the like; R7and R8 each represent an optionally substituted hydrocarbon group and the like; R9 and R10 each represent (1) a hydrogen atom and the like; Y represents an optionally substituted methylene group; and n represents 0 or 1, or a salt thereof, which has an excellent phosphodiesterase IV inhibiting action.
