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Síntesis de terpenos con esqueleto de espongiano, escopadulano y estrano
, 2001 openaire +1 more source
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A general synthesis of (2Z)-terpenoic acids
Tetrahedron Letters, 2000Abstract A three-step synthesis of (2 Z ), (4 E )-polyenic acids 6 is described. Condensation of aldehydes 1 with potassium prenal enolate led to dihydropyranols 3 which were oxidized into dihydropyrones 5 , precursors of (2 Z) , (4 E )-polyenic acids 6 .
Dominique Cahard +3 more
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Terpeno-p-hydroxybenzoic acid derivatives from Rapanea umbellata
Phytochemistry, 1991Abstract The leaves of Rapanea umbellata yielded three terpeno- p -hydroxybenzoic acid derivatives which appear to be novel. These compounds were identified on the basis of spectroscopic analysis as 3-geranyl-4-hydroxy-5-(3″,3″-dimethylallyl)-benzoic acid; 5-carboxy-7-(3″,3″-dimethylallyl)- 2-(1′-hydroxy-1′,5′-dimethylhex-4′-enyl)-2,3 ...
Ana H. Januário +3 more
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