848652-66-4

Upstream product

• 848652-64-2 (5'R,20R)-5α,6α-epoxy-20-(3-isopropyl-4,5-dihydroisoxazol-5-yl)-3-(p-tolylsulfonyloxy)pregnan-20-ol 
• 848652-63-1 (5'R,20R)-20-(3-isopropyl-4,5-dihydroisoxazol-5-yl)-3-(p-tolylsulfonyloxy)pregn-5-ene 
• 848650-16-8 (5'R,20R)-20-(3-isopropyl-4,5-dihydroisoxazol-5-yl)pregn-5-ene-3,20-diol 
• 88703-33-7 (20S)-20-vinylpregn-5-ene-3,20-diol 
• 145-13-1 Pregnenolone 
• 848652-65-3 (5'R,20R)-20-(3-isopropyl-4,5-dihydroisoxazol-5-yl)-3-(p-tolylsulfonyloxy)pregnane-5α,6β,20-triol 

Relevant academic research and scientific papers

Synthesis of 5α-hydroxyecdysteroid analogs containing an isoxazole ring in the side chain

An analog of 5α-hydroxyecdysteroids having an isoxazole ring in the side chain was synthesized starting from pregnenolone through intermediate 20-hydroxy-20-(3-isopropyl-4,5-dihydroisoxazol-5-yl) derivative. α-Bromination of 6-oxo steroids was accompanied