Laurencin, a constituent from laurencia species
β Scribed by Toshi Irie; Minoru Suzuki; Tadashi Masamune
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- French
- Weight
- 334 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
An investigation of constituents from Laurencia glandulifera, Kiit.zing,* led to the isolation of a compound containing bromine, which was designated laurencin. In the present paper we wish to report that formula (I) is the most favorable structure for the compound. Laurencin (I), m.p. 73-74' (methanol) and [d]i3 +70:2' (in chloroform), was obtained in 0.035% yield by chromatographic purificatior of the neutral fraction from methanol extracts, and was analyzed for C H 0 Br (Found:
π SIMILAR VOLUMES
In the preceding paper (2) the isolation and structural elucidation of laureatin from Laurencia nipponica Yamada have been reported. From the same source, we have isolated an isomeric bromo compound, designated as isolaureatin, which is now assigned structure I on chemical and spectroscopic eviden
We describe herein the isolation and structural elucidation of a new bromo compound, designated as laureatin, in Laurencia ninoonica Yamada (Japanese name Urasozo; Rhodomelaceae). Laureatin (I), C15H2002Br2 (Mf 394, 392 and 390), m.p. 82-83', la], +96" @X4), was isolated in 0.05% yield by chromatogr