T. Nohara et al., BUT-2-ENOLIDES FROM PUERARIA-LOBATA AND REVISED STRUCTURES OF PUEROSIDE-A, PUEROSIDE-B AND SOPHOROSIDE-A, Phytochemistry, 33(5), 1993, pp. 1207-1210
From the roots of Pueraria lobata, two aromatic compounds have been ob
tained and their chemical structures have been characterized as but-2-
enolides. In connection with this result, it has become apparent that
the previous structures for puerosides A, B and sophoroside A should b
e revised to related but-2-enolides.