23367-76-2

Upstream product

• 23367-75-1 1-(3,4-Dimethoxyphenyl)-2-<1-<(4-methoxyphenyl)acetyl>piperidin-2-yl>ethanone 
• 34418-91-2 2,3,4,5-tetrahydropyridine N-oxide 
• 90243-11-1 2-<2(S*)-(3,4-Dimethoxyphenyl)-2-hydroxyethyl>piperidine 
• 20784-00-3 1-(3,4-dimethoxyphenyl)-2-(2-piperidyl)ethanol 
• 79228-19-6 1-{2-[2-(3,4-Dimethoxy-phenyl)-2-hydroxy-ethyl]-piperidin-1-yl}-2-(4-methoxy-phenyl)-ethanone 
• 79235-48-6 2-(3,4-Dimethoxy-phenyl)-hexahydro-isoxazolo[2,3-a]pyridine 
• 6380-23-0 3,4-dimethoxystyrene 
• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 79228-19-6 2-<2-(3,4-Dimethoxyphenyl)-2-hydroxyethyl>-1-<(4-methoxyphenyl)acetyl>piperidine 

Downstream Products

• 23365-39-1 2-(3,4-dimethoxyphenyl)-3-(4-methoxyphenyl)-1,6,7,8,9,9a-hexahydro-4H-quinolizin-4-one 

Relevant academic research and scientific papers

General Synthesis of Phenanthroindolizidine, Phenanthroquinolizidine, and Related Alkaloids: Preparation of (+/-)-Tylophorine, (+/-)-Cryptopleurine, (+/-)-Septicine, and (+/-)-Julandine

A general synthetic route to the pentacyclic phenanthro class and related indolizidine and quinolizidine alkaloids via β-amino ketone intermediates is reported.The synthesis of tylophorine, cryptopleurine, septicine, and julandine, in racemic forms, has been described.Synthetic steps in the preparation of these alkaloids involve 1,3-dipolar cycloadditions of the cyclic nitrones as a common feature followed by crucial ring closure by aldol reactions and photolyses.