H. Morita et al., CYCLIC-PEPTIDES FROM HIGHER-PLANTS .33. DELAVAYINS A-C, 3 NEW CYCLIC-PEPTIDES FROM STELLARIA-DELAVAYI, Journal of natural products, 60(3), 1997, pp. 212-215
Three new cyclic peptides, delavayins A-C (1-3), were isolated from th
e roots of Stellaria delavayi. The structures of 1-3, cyclo(-Gly-Ser-g
amma-hydroxy Ile-Phe-Phe-Ala-) (1), cyclo(-Gly-Ser-Ile-Phe-Phe-Ala-) (
2), cyclo(-Gly-Tyr-Tyr-Tyr-Pro-Val-Pro-) (3), were elucidated from spe
ctroscopic evidence and by chemical degradation.