202577-02-4Relevant articles and documents
New hydrophosphoryl compounds derived from ent-16-oxobeyeran-19-oic acid
Mamedova,Nikitina,Alfonsov
, p. 1622 - 1626 (2012)
A number of 16-hydroxy derivatives were obtained from ent-16-oxobeyeran-19- oic acid, O-phosphorylation of which with subsequent hydrolysis led to the corresponding hydrophosphoryl compounds. Their diastereomeric composition was studied.
Chemistry and structure of diterpene compounds of the kaurane series: IV. Acylation of reduction products of the isosteviol keto group
Al'fonsov,Bakaleinik,Gubaidullin,Kataev,Kovylyaeva,Konovalov,Litvinov,Strobykina,Andreeva,Korochkina
, p. 1144 - 1148 (2007/10/03)
Acetylation with acetic anhydride of (4α,8β,13β)-16-hydroxy-13-methyl-17-norkaurane-18-carboxylic acid and its methyl ester, obtained by reduction of isosteviol and (4α,8β,13β)-18-methoxycarbonyl-13-methyl-16-oxo-17-norkaurane, respectively, gives rise to
THE BIOTRANSFORMATION OF SOME ENT-BEYERAN-19-OIC ACIDS BY GIBBERELLA FUJIKUROI
Ali, Mohammad Shaiq,Hanson, James R.,Oliveira, Bras H. de
, p. 507 - 510 (2007/10/02)
The biotransformation of isostevic acid (ent-beyeran-19-oic acid), ent-16β-hydroxybeyeran-19-oic acid, and ent-16β-hydroxy-16α-methylbeyeran-19-oic acid by Gibberella fujikuroi has been shown to give ring A desoxybeyergibberellin abalogues of GA9, GA12 and GA25.The ent-16β-hydroxybeyeran-19-oic acid also gave some hydroxylated beyeranes and the 7β-hydroxybeyeranolide. Key words: Gibberella fujikuroi; diterpenoid; beyeran-19-oic acids; gibberellins; biotransformation.
