77027-29-3Relevant academic research and scientific papers
STEREOSELECTIVE SYNTHESIS OF THE GEOMETRIC AND OPTICAL ISOMERS OF UNSATURATED 3-MONO- AND 3,6-DISUBSTITUTED 2,5-PIPERAZINEDIONES
Shin, Chung-gi
, p. 1407 - 1433 (2007/10/02)
Four kinds of naturally occurring 3,6-dibenzylidene (1)-, 3-(p)-anisilidene-6-benzylidene (2)-, 3-isobutylidene-6-benzylidene (3; antibiotic albonoursin)-, and 3-benzyl-6-benzylidene-2,5-piperazinediones (4), isolated from Streptomyces and Actinomyces str
SYNTHESIS AND STRUCTURAL ASSIGNMENT OF NATURALLY OCCURRING 3-BENZYL-6-BENZYLIDENE-2,5-PIPERAZINEDIONE
Shin, Chung-gi,Kato, Haruo,Yonezawa, Yasuchika,Hayakawa, Masato,Yoshimura, Juji
, p. 1767 - 1770 (2007/10/02)
Four possible stereoisomers of 3-benzyl-6-benzylidene-2,5-piperazinedione were synthesized, and the configuration of the natural product isolated from Streptomyces noursei was determined to be (3R, 6Z).It was found that the sign of the optical rotations and the Cotton effect are reversed only by the difference of the (E)- or (Z)-geometry.
