Synthesis of 7α- and 17-bromonorambreinolides from norambreinolide
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VLAD, Pavel; CIOCÂRLAN, Alexandru; MIRONOV, Grigore; COLŢA, Mihai; GHEREG, Ghenadie; KRAVŢOV, Victor; LIPKOWSKI, Janusz. Synthesis of 7α- and 17-bromonorambreinolides from norambreinolide. In: Chemistry Journal of Moldova. 2007, nr. 1(2), pp. 114-118. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 1(2) / 2007 / ISSN 1857-1727 /ISSNe 2345-1688

Synthesis of 7α- and 17-bromonorambreinolides from norambreinolide

Pag. 114-118

Vlad Pavel, Ciocârlan Alexandru, Mironov Grigore, Colţa Mihai, Ghereg Ghenadie, Kravţov Victor, Lipkowski Janusz
 
Academia de Ştiinţe a Moldovei
 
Disponibil în IBN: 2 decembrie 2013


Rezumat

A mixture of 7α- and 17-bromonorambreinolides was obtained on treatment of the mixture of isomeric methyl bicyclohomofarnesenoates, the norambreinolide transesterifi cation product, with NBS and H2 O2. The structure of 7α- and 17-bromonorambreinolides was elucidated on the basis of spectral data. The structure of 17-bromonorambreinolide was confi rmed by its reduction with LiAlH4 into sclaradiol, and that of 7α-bromonorambreinolide by X-ray analysis.

Cuvinte-cheie
7α- and 17-bromonorambreinolides, X-rays analysis,

synthesis