- A LANOSTANOID OF FORMOSAN GANODERMA LUCIDUM
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A new steryl ester, ergosta-7,22-dien-3β-yl palmitate, a novel lanostanoid, named ganoderic aldehyde A (3β-hydroxy-26-oxo-5α-lanosta-8,24-dien-11-one, ergosta-7,22-dien-3β-ol, ergosta-7,22-dien-3-one, and ergosterol peroxide, were isolated from the fruit bodies of Formosan Ganoderma lucidum and characterized by chemical degradation, synthesis, and spectral data.
- Lin, Chun-Nan,Tome, Whey-Pin,Won, Shen-Jeu
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p. 673 - 675
(2007/10/02)
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- 24-EPIBRASSINOLIDE UPTAKE IN GROWING MAIZE ROOT SEGMENTS EVALUATED BY MULTIPLE-SELECTED ION MONITORING
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The evaluation of the uptake of 24-epibrassinolide (BR) in growing maize root segments by means of multiple-selected ion monitoring showed that BR is accumulated into the fresh tissue independently of energy supply, while the experiments performed with fr
- Allevi, Pietro,Anastasia, Mario,Cerana, Raffaella,Ciuffreda, Pierangela,Lado, Piera
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p. 1309 - 1314
(2007/10/02)
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- Selective Reduction of the 7(8)-Double Bond in Ergosterol
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Reduction of ergosterol alkoxide derivatives with lithium metal gives better yields of the 7(8)-reduced product brassicasterol than previous procedures; the mixed products of the reduction are easily converted into ergosta-2,22-dien-6-one, a convenient in
- Barton, Derek H. R.,Lusinchi, Xavier,Magdzinski, Leon,Ramirez, Jesus Sandoval
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p. 1236 - 1238
(2007/10/02)
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- A New Synthesis of Brassino Steroids: Plant Growth Promoting Steroids
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(22R,23R)- and (22S,23S)-2α,3α,22,23-Tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one, two physiologically active brassino steroids, have been synthesized via key intermediate brassicasterol obtained in a very simple way by reduction with lithium dissolved in ethylamine of the 1,4-cycloadduct of ergosterol and 4-phenyl-1,2,4-triazoline-3,5-dione.
- Anastasia, Mario,Ciuffreda, Pierangela,Fiecchi, Alberto
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p. 379 - 382
(2007/10/02)
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- A Simple Method for the Reduction of the 7,8-Double Bond of Steroidal 5,7-Dienes
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1,4-Cycloadducts of various steroidal 5,7-dienes and 4-phenyl-1,2,4-triazoline-3,5-dione gave a separable mixture (3 : 2) of the corresponding Δ5- and Δ7-sterols in good yield when treated with lithium dissolved in refluxing ethylamine.
- Anastasia, Mario,Ciuffreda, Pierangela,Fiecchi, Alberto
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p. 1169 - 1170
(2007/10/02)
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