2550-89-2Relevant articles and documents
3β-Hydroxy-5β-cholest-7-en-6-one as an Intermediate of 20-Hydroxyecdysone Biosynthesis in a Hairy Root Culture of Ajuga reptans var. atropurpurea
Nagakari, Mitsuhiro,Kushiro, Tetsuo,Yagi, Tomoko,Tanaka, Nobukazu,Matsumoto, Takeshi,et al.
, p. 1761 - 1762 (1994)
-, - and -Cholesterols and - and -3β-hydroxy-5β-cholest-7-en-6-ones were converted with a hairy root culture of Ajuga reptans var. atropurpurea into 20-hydroxyecdysone, in which the deuterium atoms retained their original positions, thus strongly suggesting that 3β-hydroxy-5β-cholest-7-en-6-one is an obligatory intermediate in the biosynthesis of ecdysteroids in the plant.
Synthesis of potential inhibitors of the biosynthesis of ecdysone, the moulting hormone of insects
Guilherme-Dolle, V.,Hetru, C.,Luu, B.
, p. 733 - 739 (2007/10/02)
We have synthesized new potential acetylenic inhibitors of the last step in the biosynthesis of ecdysone, the moulting hormone of insects.The key step in our synthesis is the introduction of the A/B cis ring junction (5β-H configuration) by regio- and stereoselective hydroboration of the Δ5 double bond (B-ring) of 7-dehydrocholesterol. - Keywords: ecdysteroid / ecdysteroid inhibitors / hydroboration / acetylenic derivatives