Natural Compounds

2013 Edition
| Editors: Shakhnoza S. Azimova, Ashraf I. Saidkhodzhaev

3β-Angeloyloxy-6β-ethoxy-10βH-furanoeremophilane

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-0539-9_1123

Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Sesquiterpene Esters – The Bicyclic Sesquiterpene Esters – Eremophilanes – Furanoeremophilanes – Monoesters

Biological sources: Petasites niveus Baumg. [1]

C22H32O4: 360.2301

Mp: colorless oil [1]

[α]D22 −25.7° (c 0.43, CHCl3) [1]

UV (cyclohexane) 220 (3.98) [1]

IR (film): 1706, 1635, 1560 [1]

MS: 360 [M]+ (0.5), 152 (100), 123 (27), 108 (11), 83 (13), 55 (22) [1]

HPLC: [1]

1H NMR (CDCl3, C6D6): 0.99, 0.88 (3H, d, J = 7.1, H-15), 1.26, 1.22 (3H, t, J = 7.0, CH2Me), 1.94, 1.94 (3H, m, =C(Me)C(O)O−), 1.99, 2.00 (3H, dq, J = 6.9; 1.4, =CHMe), 2.04, 2.00 (3H, d, J = 1.3, H-13), 2.23, 2.09 (1H, m, which, on irradiation at H-6α, became a dd, J = 17; 1.5, H-9α), 2.80, 2.60 (1H, m, which, on irradiation at H-12, became a ddd, J = 17.0; 6.0; 2.2, H-9β), 4.61, 4.56 (1H, m, H-6), 5.39, 5.43 (1H, m, H-3), 6.05, 5.69 (1H, qd, J = 6.9; 1.1, =CHMe), 7.04, 7.03 (1H, m, H-12), 0.99, 1.01 (3H, s, H-14), (OCH2 in CDCl3...

This is a preview of subscription content, log in to check access

References

  1. 1.
    A. Guerriero, F. Pietra, Phytochemistry 21(12), 2887 (1982)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013