Sr. Rojatkar et al., PHOTOOXIDATION OF 7-HYDROXYEUDESMANOLIDE, A CONSTITUENT FROM SPHAERANTHUS-INDICUS LINN, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 33(12), 1994, pp. 1203-1204
A new 5alpha,7-dihydroxyeudesmanolide (4) alongwith two known eudesman
olides (2 and 3) have been obtained from the photo-oxidation of a know
n 7-hydroxyeudesmanolide (1). The structures of all three compounds ha
ve been established by spectral data and comparison with natural produ
cts.