From the biogenetic point of view the rearranged 9(10/20)-abeoabietane diterpenoids fromPerovskiagenus were generally 5Sand 10S configurations, which had been verified by the X-ray crystallography for a sample of demethylsalvicanol from P.
From the biogenetic point of view the rearranged 9(10/20)-abeoabietane diterpenoids fromPerovskiagenus were generally 5Sand 10S configurations, which had been verified by the X-ray crystallography for a sample of demethylsalvicanolfrom P.