Results 111 to 120 of about 942 (144)

Bioactive Kaurane Diterpenes and Coumarins from Fortunella margarita.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
A M, el-Shafae, M A, Ibrahim
openaire   +2 more sources

Kauranes and related diterpenes from Adenostemma brasilianum

Phytochemistry, 1996
Aerial parts of Adenostemma brasilianum provided a number of new ent-kauranes oxygenated at C-1 and a modified abietane.
Alicia Bardón, Susana Montanaro, César A.N. Catalán, Jesús G. Díaz, Werner Herz   +4 more
openaire   +1 more source

A New Kaurane Diterpene from the Seeds of Vernonia anthelmintica

Chemistry of Natural Compounds, 2018
A new kaurane diterpene, 16α,17-acetonide-3α-hydroxykauran (1), and four known octadecenoic acid derivatives,12,13,17-trihydroxy-9(Z)-octadecenoic acid methyl ester (2), 12,13,17-trihydroxy-9(Z)-octadecenoic acid (3), tianshic acid (4), and 1,3-divernolin (5), were isolated from the seeds of Vernonia anthelmintica.
A. Turak, Z. Maimaiti, H. A. Aisa
openaire   +1 more source

Nor-ent-kaurane diterpenes and hydroxylactones from Antennaria geyeri and Anaphalis margaritacea

Phytochemistry, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mohamed Farag, , Paul Pare
exaly   +3 more sources

Cytotoxic Trachylobane and Kaurane Diterpenes from Psiadia punctulata

2020
Original NMR data (FIDs).
Yaouba, Souaibou, Valkonen, Arto, von der Heiden, Daniel, Lindblad, Sofia, Coghi, Paolo, Irungu, Beatrice, Midiwo, J. O., Wong, Vincent K. W., Yenesew, Abiy, Erdelyi, Mate   +9 more
openaire   +2 more sources

Three new ent-kaurane diterpenes from the herbs of Wedelia prostrata

Journal of Natural Medicines, 2016
Three new ent-kaurane diterpenes, 3α-angeloyloxy-17-hydroxy-ent-kaur-15-en-19-oic acid (1), 3α-tigloyloxy-17-hydroxy-ent-kaur-15-en-19-oic acid (2) and 3α-cinnamoyloxykaur-9(11),16-dien-19-oic acid (3), along with five known compounds (4-8), were isolated from the herbs of Wedelia prostrata (Asteraceae).
Zhongnan, Wu, Yubo, Zhang, Li, Yang, Nenghua, Chen, Lin, Jiang, Siqi, Jiang, Guoqiang, Li, Yaolan, Li, Guocai, Wang   +8 more
openaire   +2 more sources

Involvement of Nrf2 signaling pathway in the neuroprotective activity of natural kaurane diterpenes

Neuroscience, 2013
Oxidative stress is a common harmful condition of several neurodegenerative diseases. Antioxidants represent the medical choice strategy for protection against this unbalanced oxidant-antioxidant status. The present study was undertaken to address the role of kaurane diterpenes foliol, linearol and sidol in the protection against H(2)O(2)-induced ...
E, González-Burgos, M E, Carretero, M P, Gómez-Serranillos   +2 more
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Preparation and Phytotoxicity of Novel Kaurane Diterpene Amides with Potential Use as Herbicides

Journal of Agricultural and Food Chemistry, 2008
Novel kaurane ditepene monoamides were synthesized in good yields directly from kaurenoic ( 1) and grandiflorenic ( 2) acids and unprotected symmetrical diamines, using a modified protocol for monoacylation. Amides from 1 and 2 and monoamines were also obtained and tested against seed germination and growth of radicle and shoot of Lactuca sativa ...
Maria Amélia Diamantino, Boaventura, Rondinelle Gomes, Pereira, Luiza B, de Oliveira Freitas, Leandro Alves, Dos Reis, Henriete, da Silva Vieira   +4 more
openaire   +2 more sources

Kaurane and kaurene diterpenes from the stem bark of Xylopia acutiflora

Phytochemistry, 1982
Abstract Four diterpenes were isolated from the stem bark of Xylopia acutiflora and characterized as (−)-kauran-16α-ol, 7,8-acetoxy-(−)-kaur-16-en-19-oic acid, 15-oxo-(−)-kaur-16-en-19-oic acid, and 16α- hydroxy-(−)-kauran-19-oic acid.
Choudhury M. Hasan, Terence M. Healey, Peter G. Waterman   +2 more
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Frutoic acid, a dimeric kaurane diterpene from Xylopia frutescens

Phytochemistry, 1995
Sitosterol and six diterpenes were isolated from green fruit, stem bark and leaves of Xylopia frutescens and characterized as ent-15α-acetoxy-kaur-16-en-19-oic acid (xylopic acid), ent-kaur-16-en-19-oic acid (kaurenoic acid), ent-16β-hydroxy-kaurane, ent-kaur-16-en-19-ol, ent-16β-hydroxy-kauran-19-oic acid and ent-16β,17-dihydroxy-kauran-19-oic acid ...
Jacqueline A. Takahashi, Maria Amélia D. Boaventura, Joaquim de Carvalho Bayma, Oliveira Alaíde B.   +3 more
openaire   +1 more source