title: Longifoamide-A and B: Two new ceramides from Mentha longifolia (Lamiaceae).
abstract: Two new N-acylsphingosines (ceramides) named longifoamide A {6'-tetracosenamide, (6'-Z)-N-[2,3-dihydroxy-1-(hydroxymethyl)octadecyl]} and B {6'-tetracosenamide, (6'-Z)-N-[2,3,4-trihydroxy-1-(hydroxymethyl)octadecyl]} were isolated from a methanol extract of Mentha longifolia. Both ceramides were characterized with the aid of 1D and 2DNMR spectroscopic techniques and high resolution mass spectrometry.
authors.affiliation: International Center for Chemical Sciences, H. E. J. Research, Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan. shaiq303@hotmail.com
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shaiq Ali
authors.forename: Waqar
authors.initials: W
authors.lastname: Ahmed
authors.forename: Muhammad
authors.initials: M
authors.lastname: Saleem
authors.forename: Taous
authors.initials: T
authors.lastname: Khan
mesh_terms: D002518:Ceramides / Q000737:chemistry / Q000302:isolation & purification*; D013058:Mass Spectrometry; D027541:Mentha / Q000737:chemistry*; D008968:Molecular Conformation; D019906:Nuclear Magnetic Resonance, Biomolecular; D009904:Optical Rotation; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D013055:Spectrophotometry, Infrared
chemical_list: D002518:Ceramides; D010936:Plant Extracts