Results 131 to 140 of about 1,570 (164)

Semisynthesis and Antitumour Evaluation of Natural Derivatives from ent-Kaurene ent-15α-Angeloyloxykaur-l6-en-3β-ol Isolated from Distichoselinum tenuifolium. [PDF]

Int J Mol Sci
Yasser YK, Gil D, Zentar H, Durán-Peña MJ, Prados-Lopez B, Juárez-Moreno J, Botubol-Ares JM, Haidour A, Sainz J, Fernández A, Alvarez-Manzaneda R, Chahboun R, Reyes-Zurita FJ.   +12 more
europepmc   +1 more source

Coffee Oil Extraction Methods: A Review. [PDF]

Foods
Ribeiro RC, Mota MFS, Silva RMV, Silva DC, Novaes FJM, da Veiga VF, Bizzo HR, Teixeira RSS, Rezende CM.   +8 more
europepmc   +1 more source

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Trypanosomicidal Kaurane Diterpenes fromWedelia paludosa

Planta Medica, 1999
The diterpenes ent-kaur-16-en-19-oic acid, ent-kaur-9(11),16(17)-dien-19-oic acid and 3 alpha-angeloiloxy-ent-kaur-16-en-19-oic acid were identified as trypanosomicidal compounds of the ethanolic extract from the aerial parts of Wedelia paludosa D.C.
R, Batista, E, Chiari, A B, de Oliveira
openaire   +2 more sources

A new kaurane diterpene dimer from Parinari campestris

Fitoterapia, 2005
A new kaurane diterpene dimer, 15-oxozoapatlin-13alpha-yl-10'alpha,16'alpha-dihydroxy-9'alpha-methyl-20'-nor-kauran-19'-oic acid gamma-lactone-17'-oate (1), together with the known 13-hydroxy-15-oxozoapatlin (2), 10alpha,13alpha,16alpha,17-tetrahydroxy-9alpha-methyl-15-oxo-20-nor-kauran-19-oic acid gamma-lactone (3), 2alpha,10alpha,13alpha,16alpha,17 ...
BRACA, ALESSANDRA, A. F. ABDEL RAZIK, J. MENDEZ, MORELLI, IVANO   +3 more
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HPLC quantitation of kaurane diterpenes in Xylopia species

Fitoterapia, 2001
Xylopia frutescens is a tree native to the Brazilian Amazon whose seeds are rich in kaurenoic acid, a diterpene that showed in vitro activity against Trypanosoma cruzi. Aiming to find out alternative sources for kaurenoic acid, the content of some kaurane diterpenes was evaluated in X. aromatica and X.
A C, de Melo, B B, Cota, A B, de Oliveira, F C, Braga   +3 more
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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
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Kaurane and trachylobane diterpenes from Xylopia aethiopica

Phytochemistry, 1994
Abstract Phytochemical investigation of Xylopia aethiopica (Annonaceae) has resulted in the isolation of two novel diterpenes, 15-oxo-(-)-trachyloban-19-oic acid and (-)-kaur-15-en-17-al-19-oic acid. Also encountered were the known compounds 15-hydroxy-(-)-trachyloban-19-oic acid, 15β-hydroxy-(-)-kaur-16-en-19-oic acid (as an inseperable mixture), 15-
George G. Harrigan, Vanderlan da S.Bolzani, A.A. Leslie Gunatilaka, David G.I. Kingston   +3 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