152615-14-0Relevant articles and documents
Qianhucoumarin I from Peucedanum praeruptorum
Kong, Ling-Yi,Min, Zhi-Da,Li, Yi,Li, Xian,Pei, Yue-Hu
, p. 1689 - 1691 (1996)
A new angular dihydropyranocoumarin, named qianhucoumarin I was isolated from the root of Peucedanum praeruptorum. By spectral analysis and chemical evidence, the structure was elucidated as 3'(S)-acetoxy-4'(S)-tigloylilxy- 3',4'-dihydrosesetin, and the absolute configurations were established by chemical correlation with known compounds.
ISOSAMIDIN ANALOG AND SAMIDIN ANALOG PRODUCTION METHOD
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, (2018/10/19)
PROBLEM TO BE SOLVED: To provide a simple method of industrial-scale production of an isosamidin analog or samidin analog. SOLUTION: In the production method, a compound represented by the formula (1) in the figure is 1) senecioylated and 2) acetylated. [X is O or the like; R1 are each independently a C1-3 alkyl group or the like; R2 is H or the like; R3 are each a C1-3 alkyl group; m is an integer from 0 to 2; n is 1 or 2; and the symbol * represents an asymmetric center.] SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT