Date of Publication

10-2005

Document Type

Master's Thesis

Degree Name

Master of Science in Chemistry

Subject Categories

Chemistry

College

College of Science

Department/Unit

Chemistry

Thesis Adviser

Consolacion Y. Ragasa

Defense Panel Chair

Jaime Raul O. Janairo

Defense Panel Member

Glenn V. Alea
Alicia M. Aguinaldo

Abstract/Summary

Four new iridoids (GA6, GA5-1, GA5-2 and GA5-3), squalene (GA4), and mixture of sitosterol and stigmasterol (GA1) were obtained from air-dried flowers of Gardenia jasminoides Ellis. (syn. Gardenia augusta), commonly known as rosal. Compound GA6 was obtained as a pure compound, while GA5-1 and GA5-2 were obtained as a diasteriomeric mixture, together with GA5-3. The structures of the three new iridoids (GA6, GA5-1 and GA5-2) were elucidated by extensive 1D and 2D NMR spectroscopy. The structures of squalene (GA4) and mixture of stigmasterol and sitosterol (GA1) were deduced from comparison of their spectral data with those reported for these compounds in the literature.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTG004023

Shelf Location

Archives, The Learning Commons, 12F Henry Sy Sr. Hall

Physical Description

1 computer optical disc, 4 3/4 in.

Keywords

Gardenia; Flowers; Plant metabolites

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