title: Cichorins B and C: two new benzo-isochromenes from Cichorium intybus.
abstract: Two new benzo-isochromenes, named cichorins B (1) and C (2), were isolated from Cichorium intybus. The structures of the new compounds were elucidated by detailed spectroscopic analysis such as ¹H, ¹³C NMR, COSY, HMQC, HMBC, and HR-EI-MS. Relative configurations of asymmetric centers of cichorins B and C were determined by the analysis of the ¹H NMR coupling constants together with the 2D NOESY and 1D NOE experiments as well as from [α]²⁵(D) value.
authors.affiliation: Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Birkat Al-Mouz, Nizwa 616, Sultanate of Oman. hidayat110@gmail.com
authors.forename: Hidayat
authors.initials: H
authors.lastname: Hussain
authors.forename: Javid
authors.initials: J
authors.lastname: Hussain
authors.forename: Samina
authors.initials: S
authors.lastname: Ali
authors.forename: Ahmed
authors.initials: A
authors.lastname: Al-Harrasi
authors.forename: Muhammad
authors.initials: M
authors.lastname: Saleem
authors.forename: Ghulam Abbas
authors.initials: GA
authors.lastname: Miana
authors.forename: Muhammad
authors.initials: M
authors.lastname: Riaz
authors.forename: Saeed
authors.initials: S
authors.lastname: Anwar
authors.forename: Sajjad
authors.initials: S
authors.lastname: Hussain
authors.forename: Liaqat
authors.initials: L
authors.lastname: Ali
mesh_terms: D001578:Benzopyrans / Q000737:chemistry / Q000302:isolation & purification*; D018651:Cichorium intybus / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010154:Pakistan
chemical_list: D001578:Benzopyrans; C571601:cichorin B; C571602:cichorin C