Records of Natural Products

A scientific open acces journal in the field of natural products.
Editor-in-Chief: Gülaçtı Topçu
Honorary Editor: Ayhan Ulubelen
Co-Editor-in-Chief: Ahmet C Gören

LATEST ARTICLES

Original Article

A New Isoflavonolignan Glycoside from Abrus cantoniensis

Rec. Nat. Prod. (2019) in press ; 1 - 6
by Fuxuan Wu , Miaomiao Yu , Wanling Chen , Lu Zhou , Dan Zhang , Yujie Peng , Xifeng Sheng , Hui Zou and Junjiang Fu

A new isoflavonolignan glycoside, namely cantoniensin A (1), along with three known compounds were isolated from Abrus cantoniensis. The structure of the new compound was elucidated on the basis of spectroscopic analyses, including 1D-, 2D-NMR and HRESIMS. Compound 1 is the second example of isoflavonolignan glycoside from nature and is also the first isoflavonolignan isolated from the genus of Abrus.

DOI
http://doi.org/10.25135/rnp.125.19.01.1165
(DOI number will be activated after the manuscript has been available in an issue.)
Keywords
Leguminosae Abrus cantoniensis cantoniensin A isoflavonolignan isoflavonolignan glycoside
Available online: March 02, 2019
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Short Report

Thymol derivatives from Eupatorium fortunei

Rec. Nat. Prod. (2019) in press ; 1 - 6
by Minh Giang Phan , Vu Minh Trang , Do Thi Viet Huong , Susumu Kawakami and Hideaki Otsuka

The presence of thymol derivatives in the leaves and twigs of E. fortunei collected in Northern Vietnam was investigated. Five thymol derivatives, including new 9-O-angeloxy-10-hydroxy-8-methoxythymol, 10-acetoxy-9-chloro-8,9-dehydrothymol, 9-acetoxy-8,10-epoxythymol-3-O-isobutyrate, 8,10-epoxy-9-hydroxy-thymol-3-O-tiglate, and 9-acetoxy-8,10-epoxythymol-3-O-angelate together with six other compounds, including taraxasteryl acetate, o-coumaric acid, trans-melilotoside, (–)-loliolide, coumarin, and b-sitosterol were isolated. The structures of the isolated compounds were determined on the basis of MS and NMR spectroscopic data.

DOI
http://doi.org/10.25135/rnp.122.18.11.1032
(DOI number will be activated after the manuscript has been available in an issue.)
Keywords
Eupatorium fortunei Asteraceae thymol
Available online: February 24, 2019
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Original Article

Structural Elucidation of a Coumarin with New Skeleton from Artemisia ordosica

Rec. Nat. Prod. (2019) in press ; 1 - 5
by Wugedunqiqige Bao , Qinghu Wang and Junsheng Hao

A new coumarin, named as arteordocoumarin A (1), together with three known compounds (2-9) were isolated from the CHCl3 extract of Artemisia ordosica (A. ordosica). The structures of 1 was elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

DOI
http://doi.org/10.25135/rnp.120.18.10.1026
(DOI number will be activated after the manuscript has been available in an issue.)
Keywords
Arteordocoumarin A Artemisia ordosica NMR
Available online: February 24, 2019
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Original Article

Volatile oil constituents of Crataegus azarolus L. and Crataegus pallasii Grisb.*

Rec. Nat. Prod. (2019) in press ; 1 - 7
by Najat Agiel , Duygu Yigit Hanoğlu , Azmi Hanoğlu , K.H. Can Baser and Filiz Mericli

In this study the volatile oils constituents of the inflorescence and unripe fruits of Crataegus azarolus L. and Crataegus pallasii  Grisb. were investigated. Fifty-four compounds were identified by GC and GC-MS analysis. The major outstanding constituents of the essential oil in all samples (dried and fresh C. azarolus and dried C. pallasii) were; tricosane (33.8%, 29.3%, 34.0 %), pentacosane (24.6%, 21.1%, 30.8%), heptacosane (12.5%, 10.2%, 11.7%), and tetracosane (6.0%, 5.6%, 5.7%), respectively. Besides these alkanes, ten compounds (nonanal, β-elemene, undecanal, β-caryophyllene, (E, E)-α-farnesene, eicosane, hexyl benzoate, (Z)-3-hexenyl benzoate, (E)-2-hexenyl benzoate, docasane) were determined in all samples. Carvacrol, carvacryl acetate, carvone, and thymol were determined for the first time from C. pallasii essential oil. (E)-β-damascenone was determined only in dried C. azarolus oil; sesquiterpene compounds valencene, α-selinene and β-selinene, d-cadinene, germacrene D, selina-3,7(11)-diene, spathulenol, and d-cadinol were determined only in fresh C. azarolus sample. On the other hand (2E,6E)-farnesol was determined in dried C. azarolus and C. pallasii samples.

 

DOI
http://doi.org/10.25135/rnp.123.18.11.1060
(DOI number will be activated after the manuscript has been available in an issue.)
Keywords
Crataegus azarolus Crataegus pallasii volatile constituents GC-MS analysis
Available online: February 23, 2019
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© ACG Publications. All rights reserved.