New peptide alkaloids from Hovenia dulcis and H. tomentella

New peptide alkaloids from Hovenia dulcis and H. tomentella Hovenia dulcis Thumberg: Phytochemistry, Pharmacology, Toxicology and Regulatory Framework for Its Use in the European Union Peptide alkaloids of Discaria longispina Ceanothus alkaloids. II. Peptide alkaloids from Ceanothus americanus Ceanothus alkaloids. II. Peptide alkaloids from Ceanothus americanus Cyclic peptide alkaloids from the bark of Discaria americana Alkaloids from rhamnaceae—XXVI Cyclic peptide and peptide alkaloids from seeds ofZizyphus vulgaris Alkaloids of Hernandia ovigera L. A New Alkaloid from the Roots of Alstonia angustifolia