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Titolo:
Synthesis and bioactivity of natural and C-3 fluorinated biosynthetic precursors of 28-homobrassinolide
Autore:
Galagovsky, LR; Gros, EG; Ramirez, JA;
Indirizzi:
Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Quim Organ, RA-1428 Buenos Aires, DF, Argentina Univ Buenos Aires Buenos Aires DF Argentina RA-1428 Aires, DF, Argentina
Titolo Testata:
PHYTOCHEMISTRY
fascicolo: 6, volume: 58, anno: 2001,
pagine: 973 - 980
SICI:
0031-9422(200111)58:6<973:SABONA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
HETEROATOM SUBSTITUENTS; BRASSINOSTEROIDS; BRASSINOLIDE; ANALOGS;
Keywords:
brassinosteroids; biosynthesis; C-3 fluorinated analogs; bioactivity; 28-homobrassinolide;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Galagovsky, LR Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Quim Organ, Pabellon 2,Ciudad Univ, RA-1428 Buenos Aires, DF, Argentina Univ Buenos Aires Pabellon 2,Ciudad Univ Buenos Aires DF Argentina RA-1428
Citazione:
L.R. Galagovsky et al., "Synthesis and bioactivity of natural and C-3 fluorinated biosynthetic precursors of 28-homobrassinolide", PHYTOCHEM, 58(6), 2001, pp. 973-980

Abstract

In this paper we describe the synthesis of two new fluorinated brassinosteroids (22R,23R)-22,23-dihydroxy-3 beta -fluorostigmastan-6-one and (22R,23R)-22,23-ditaydroxy-3 beta -fluorostigmastan-6-one. Their bioactivities wereevaluated in the rice lamina inclination test and compared with that of 28-homocastasterone, 28-homotyphasterol and 28-homoteasterone, possible biosynthetic precursors of 28-homobrassinolide. Results confirmed expected similarities between the biosynthesis of 24-ethylbrassinosteroids (named as the 28-homo series) and that described for 24-methylbrassinosteroids, and also indicated that these precursors might exhibit per se activities. (C) 2001 Published by Elsevier Science Ltd.

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Documento generato il 02/07/20 alle ore 22:39:11