title: Self gelating isoracemosol A, new racemosaceramide A, and racemosol E from Barringtonia racemosa.
abstract: Phytochemical investigation into the CHCl3extract of the fruits of Barringtonia racemosa resulted in the isolation of two new metabolites along with isoracemosol A and betulinic acid as known metabolites. The new compounds were characterised as phytosphingosine-type ceramide [(2S,3S,4R)-2-[(2R)-2-hydroxyhexadecanoyl amino]-hexacos-8(E)-ene-1,3,4-triol, 1] and racemosol E [21β-acetoxy-22α-(2-methylbutyroxy)-olean-12-ene-3β,16α,28-triol, 2] on the basis of extensive spectroscopic data analysis and chemical modifications. In addition, the self-gelating property of isoracemosol A (3) was investigated for the first time, which leads to the unexpected agglomerated porous-like morphology.
authors: a Natural Products Chemistry Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: Mangala Gowri
authors: MG
authors: Ponnapalli
authors: a Natural Products Chemistry Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: Nalini
authors: N
authors: Dangeti
authors: a Natural Products Chemistry Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: Madhu Babu
authors: MB
authors: Sura
authors: a Natural Products Chemistry Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: Haribabu
authors: H
authors: Kothapalli
authors: b NMR Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: V S Sarma
authors: VS
authors: Akella
authors: b NMR Division , Indian Institute of Chemical Technology , Hyderabad , India.
authors: Jeelani Basha
authors: JB
authors: Shaik
mesh_terms: D031382:Barringtonia / Q000737:chemistry*; D001632:Bibenzyls; D002518:Ceramides / Q000737:chemistry; D005638:Fruit / Q000737:chemistry; D005782:Gels / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives; D010936:Plant Extracts / Q000737:chemistry*; D016062:Porosity; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D001632:Bibenzyls; D002518:Ceramides; D005782:Gels; D010936:Plant Extracts; C420866:racemosol; C540708:racemosol A; D009828:Oleanolic Acid
keywords: Barringtonia racemosa; isoracemosol A; morphology and gelating property; racemosaceramide A; racemosol E