Leiocyclocin C and D, two cyclopeptides from Goniothalamus leiocarpus.
Two new cyclopeptides, leiocyclocin C (1) and D (2), were isolated from the seeds of Goniothalamus leiocarpus (Annonaceae). Their structures were determined as cyclo-(Gly1-Ser-Pro2-Tyr2-Gly2-Tyr1-Pro1-Pro3) and cyclo-(Gly1-Leu-Pro1-Gly2-Phe-Tyr-Pro2), respectively, by means of spectral and chemical methods.
Mu
Q
Q
School of Pharmacy, Fudan University, Shanghai, China. muqing2000@yahoo.com
Teng
R W
RW
Li
C M
CM
Wang
D Z
DZ
Wu
Y
Y
Sun
H D
HD
Hu
C Q
CQ
D029061:Annonaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010456:Peptides, Cyclic / Q000737:chemistry*; D010936:Plant Extracts / Q000032:analysis; D016339:Spectrometry, Mass, Fast Atom Bombardment
D010456:Peptides, Cyclic; D010936:Plant Extracts; C478995:leiocyclocin C; C478994:leiocyclocin D