174787-47-4

Upstream product

• 174787-46-3 methyl (2R)-5-hydroxy-2-(3-methoxyphenyl)-2-methylpentanoate 
• 102631-75-4 (S)-(-)-2-Methyl-2-(2'-nitrovinyl)-δ-valerolactone 
• 174787-56-5 (2R)-2-(3'-methoxyphenyl)-2-methyl-5-pentanolide 
• 134453-99-9 (R)-2-methyl-2-(2-E-nitrovinyl)-5-pentanolide 

Relevant academic research and scientific papers

Asymmetric syntheses of (-)-aphanorphine and (-)-eptazocine

Formal asymmetric syntheses of (-)-aphanorphine and (-)-eptazocine were done, utilizing asymmetric nitroolefination reaction of α-methyl-δ-valerolactone and a new aromatization of Diels-Alder adducts of chiral nitroolefins with the Danishefsky's diene.