title: Isolation and X-ray crystal structure of tetrahydroisoquinoline alkaloids from Calycotome villosa Subsp. intermedias.
abstract: Two tetrahydroisoquinoline alkaloids were extracted from the alkaloid fraction of a methanol extract of the seeds of Calycotome Villosa Subsp. intermedia. Their structures were established as (R)-1-hydroxymethyl-7-8-dimethoxy-1,2,3,4-tetrahydro- isoquinoline (1) and (S)-7-hydroxymethyl-2-3-dimethoxy-7,8,9,10-tetrahydroisoquinoline chloride (2) by spectroscopic techniques and X-ray diffraction analysis.
authors.affiliation: Laboratoire d'Analyses, d'Essais et d'Environnement (L.A.E.E.), Département de Chimie, Faculté des Sciences Dhar Mehraz, Université Sidi Mohamed Ben Abdellah, 30000 Fès, Morocco.
authors.forename: Ali
authors.initials: A
authors.lastname: El Antri
authors.forename: Ibtissam
authors.initials: I
authors.lastname: Messouri
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bouktaib
authors.forename: Rachid
authors.initials: R
authors.lastname: El Alami
authors.forename: Michael
authors.initials: M
authors.lastname: Bolte
authors.forename: Brahim
authors.initials: B
authors.lastname: El Bali
authors.forename: Mohammed
authors.initials: M
authors.lastname: Lachkar
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D018360:Crystallography, X-Ray; D019684:Magnoliopsida / Q000737:chemistry*; D008958:Models, Molecular; D044005:Tetrahydroisoquinolines / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D000470:Alkaloids; D044005:Tetrahydroisoquinolines