γ-l-Glutamyl-l-pipecolic acid in Gleditsia caspica

γ-l-Glutamyl-l-pipecolic acid in Gleditsia caspica 2(S),3(S)-3-hydroxy-4-methyleneglutamic Acid from Gleditsia caspica Trans-4-methoxypipecolic acid, an amino acid from Inga paterno Saikachinoside A, a novel 3-prenylated isoguanine glucoside from seeds of Gleditsia japonica Locustoside A — A new purine alkaloid glucoside from seeds of Gleditsia japonica γ-Glutamylpeptides from Rhynchosia albiflora Cis-5-hydroxy-L-pipecolic acid from Morus alba and Lathyrus japonicus Identification of γ-methylglutamic acid in Lathyrus maritimus THE MINOR ALKALOIDS OF GELSEMIUM SEMPERVIRENS¹ New characterizations of amino acids and γ-glutamyl peptides from acacia georginae seed