Bis-spirolabdane-type diterpenoids from Leonurus sibiricus.
Six new bis-spirolabdane-type diterpenoids, leosibirinone A (1), 3alpha-acetoxyleoheteronone C (2), leosibirinone B (3), 3alpha-hydroxyleoheteronone A (4), 3alpha-acetoxyleoheteronone E (5), and 3alpha-acetoxy-15-epileoheteronone E (6), were isolated from the aerial parts of Leonurus sibiricus. Their structures were identified on the basis of 1D and 2D NMR, including (1)H-(1)H COSY, HSQC, HMBC, and NOESY spectroscopic analyses.
Moon
Hyun Teak
HT
College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea.
Jin
Qinglong
Q
Shin
Ji Eun
JE
Choi
Eun Jin
EJ
Han
Hyo-Kyung
HK
Kim
Yeong Shik
YS
Woo
Eun-Rhan
ER
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification*; D007723:Korea; D031332:Leonurus / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013237:Stereoisomerism
D004224:Diterpenes