+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Benzofuranoid neolignans from Piper kadsura



Benzofuranoid neolignans from Piper kadsura



Acta Botanica Sinica 35(9): 687-692



In a continuing research for neolignans from Piper kadsura (Choisy) Ohwi, six benzofuranoid neolignans were isolated from the aerial part of the plant. Their structure determination were based on the spectroscopic analysis (UV, IR, MS, NMR and CD) and derivative synthesis. Three of the isolated compounds were identified as new structures: 7R, 8R, 1'S-DELTA-8-3, 4-methylenedioxy-5'-methoxy-1', 4'-dihydro-4'-oxo-7.0. 2', 8.1'-neolignan (I) 7R,8R,1'R-DELTA-8'-3,4-methylenedioxy-1'-methoxy-1', 6'-dihydro-6'-oxo-7. 0.4', 8. 3'-neolignan (IV) and 7R, 8R, 1'S-DELTA-8-3, 4-methylenedioxy-1'-methoxy-1', 6'-dihydro-6'-oxo-7. 0.4', 8.3'-neolignan (V). Known compounds among them are 7R, 8S, 1'S-DELTA-8-3, 4-methylenedioxy-5'-methoxy-1', 4'-dihydro-4'-oxo-7. 0. 2', 8. 1'-neolignan (II), 7S, 8S, 1'R-DELTA-8-3, 4, 5'-trimethoxy-1',4'-dihydro-4'-oxo-7. 0. 2',8.1'-neolignan (III) and 7S, 8S, 1'S-DELTA-8-3, 4, 1'-trimethoxy-1', 6'-dihydro-6'-oxo-7. 0. 4', 8. 3'- neolignans (VI). All of them were isolated from the plant for the first time.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 009777646

Download citation: RISBibTeXText


Related references

PAF inhibitors: neolignans from Piper kadsura. Planta medica 56(6): 583-584, 1990

Anti-inflammatory neolignans from Piper kadsura. Journal of Natural Products 69(5): 842-844, 2006

PAF antagonistic benzofuran neolignans from Piper kadsura. Yao Xue Xue Bao 28(5): 370-373, 1993

Neolignans from Piper kadsura and their anti-neuroinflammatory activity. Bioorganic and Medicinal Chemistry Letters 20(1): 409-412, 2010

Molecular structures of two bicyclo-(3.2.1)-octanoid neolignans from Piper kadsura. Journal of Molecular Structure 654(1-3): 177-182, 2003

Studies on PAF antagonistic bicyclo(3,2,1) octanoid neolignans from Piper kadsura. Yao Xue Xue Bao 28(3): 207-211, 1993

Benzofuranoid neolignans from Licaria armeniaca. Phytochemistry 17(11): 2038-2039, 1978

Unusual benzofuranoid neolignans from licaria chrysophylla. Phytochemistry 25(11): 2609-2612, 1986

Simple synthesis of benzofuranoid neolignans from Myristica fragrans. Journal of Natural Products 63(6): 866-870, 2000

Synthesis of -licarin B and eupomatenoids-1 and -12 A general approach to 2-aryl-7-alkoxy-benzofuranoid neolignans. Tetrahedron Letters 37(39): 6969-6970, 1996

Interiotherins C and D, Two New Lignans from Kadsura i nterior and Antitumor-Promoting Effects of Related Neolignans on EpsteinBarr Virus Activation. Journal of Natural Products 65(9): 1242-1245, 2002

Interiotherins C and D, two new lignans from Kadsura interior and antitumor-promoting effects of related neolignans on Epstein-Barr virus activation. Journal of Natural Products 65(9): 1242-1245, 2002

Neolignans from piper futokadsura. Phytochemistry 24(9): 2079-2082, 1985

Neolignans from Piper aequale. Phytochemistry 50(3): 499-504, 1999

Neolignans from Piper polysyphorum C.DC. Yao Xue Xue Bao 26(5): 345-350, 1991