title: Nonprotein amino acids from Cycas revoluta.
abstract: Two nonprotein amino acids, cycasindene and cycasthioamide, along with eight known nonprotein amino acids, were isolated from the seeds of Cycas revoluta Thunb. The structures of cycasindene and cycasthioamide were elucidated as 3-[3'-amino-indenyl-2]-alanine (1) and N-[glycinyl-alaninyl-11-thio]-5-one-pipecolic acid (2) by chemical and spectral methods.
authors.affiliation: Department of Botany, The University of Texas at Austin 78713, USA.
authors.forename: M
authors.initials: M
authors.lastname: Pan
authors.forename: T J
authors.initials: TJ
authors.lastname: Mabry
authors.forename: J M
authors.initials: JM
authors.lastname: Beale
authors.forename: B M
authors.initials: BM
authors.lastname: Mamiya
mesh_terms: D000409:Alanine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D010875:Pipecolic Acids / Q000737:chemistry* / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification*; D010944:Plants / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
chemical_list: D010875:Pipecolic Acids; D010936:Plant Extracts; C107399:cycasindene; C107400:cycasthioamide; D000409:Alanine