A Novel Cyclic Pentapeptide with a β-Hydroxy-γ-chloroproline from Aster tataricus

A Novel Cyclic Pentapeptide with a β-Hydroxy-γ-chloroproline from <i>Aster tataricus</i> Two Novel Monochlorinated Cyclic Pentapeptides, Astins D and E from <i>Aster tataricus</i> Cyclic Peptides from Higher Plants. Part XII. Structure of a New Peptide, Astin J, from Aster tataricus. New pentapeptides from Aster tataricus Oligopeptides from Aster tataricus Structures and conformation of antitumour cyclic pentapeptides, astins A, B and C, from Aster tataricus Structural and Conformational Analysis of Hydroxycyclochlorotine and Cyclochlorotine, Chlorinated Cyclic Peptides from <i>Penicillium islandicum</i> Cyclic Peptides from Higher Plants, Part 15, Pseudostellarin H, a New Cyclic Octapeptide from Pseudostellaria heterophylla Cyclic Peptides from Higher Plants, Part 15, Pseudostellarin H, a New Cyclic Octapeptide from Pseudostellaria heterophylla Cyclic Peptides from Higher Plants. 24. Yunnanin C, a Novel Cyclic Heptapeptide from Stellaria yunnanensis