70
compound has not been reported previously. Sample 25 was grouped in the L type.
Lactones derived from ligularol (344, 367, 381, 382, and 383) were isolated along
with five noreremophilanes (33, 98, 132, 136, and 142). A guaiane-type sesquiterpenoid, LB (772), was isolated. This compound was obtained previously from the
Chinese drug “Shanziyuan” (Chinese name) or “San-Shion” (Japanese name) by
Takahashi’s group [282–284]. Although L. sibirica, L. hodgsonii, L. veitchiana,
L. latihastata, and L. franchetiana are registered as components of “Shanziyuan,”
LB (772) had not been obtained previously. These findings may indicate that “SanShion” is constituted in part from the roots of L. virgaurea or a related species.
Fig. 8 Noreremophilanes (3)
M. Tori and C. Kuroda
compound has not been reported previously. Sample 25 was grouped in the L type.
Lactones derived from ligularol (344, 367, 381, 382, and 383) were isolated along
with five noreremophilanes (33, 98, 132, 136, and 142). A guaiane-type sesquiterpenoid, LB (772), was isolated. This compound was obtained previously from the
Chinese drug “Shanziyuan” (Chinese name) or “San-Shion” (Japanese name) by
Takahashi’s group [282–284]. Although L. sibirica, L. hodgsonii, L. veitchiana,
L. latihastata, and L. franchetiana are registered as components of “Shanziyuan,”
LB (772) had not been obtained previously. These findings may indicate that “SanShion” is constituted in part from the roots of L. virgaurea or a related species.
Fig. 8 Noreremophilanes (3)
M. Tori and C. Kuroda