90171-76-9

Upstream product

• 10313-60-7 3,4-dimethoxyphenylacetyl chloride 
• 86980-84-9 2-(3,4-Dimethoxyphenyl)-2,3,3a,4,5,6-hexahydropyrrolo<1,2-b>isoxazole 
• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 6380-23-0 3,4-dimethoxystyrene 

Downstream Products

• 76787-77-4 1-(3,4-Dimethoxyphenyl)-2-<1-<(3,4-dimethoxyphenyl)acetyl>pyrrolidin-2-yl>ethanone 
• 26503-67-3 (+/-)-6,7-di(3,4-dimethoxyphenyl)-1,2,3,5,8,8a-hexahydro-indolizine 
• 76787-76-3 6,7-Di(3',4'-dimethoxyphenyl)-5-oxo-1,2,3,5,8,8a-hexahydro-indolizine 

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.