82310-55-2Relevant academic research and scientific papers
Quinolizidines. XII. Synthetic Incorporation of Ethyl Cincholoiponate into a Tricyclic Intermediate Adaptable to Chiral Syntheses of the 10-Hydroxy-9-methoxybenzoquinolizidine-Type Alangium Alkaloids
Fujii, Tozo,Ohba, Masashi,Suzuki, Hitoshi
, p. 1023 - 1028 (2007/10/02)
For the purpose of securing a key intermediate for chiral syntheses of the 10-hydroxy-9-methoxybenzoquinolizidine-type Alangium alkaloids (type 4), the tricyclic ester (-)-15 has been synthesized from ethyl cincholoiponate and 4-benzyloxy-3-met
Quinolizidines. X. Stereospecific Synthesis of (+/-)-9-Demethylpsychotrine and (+/-)-10-Demethylpsychotrine
Fujii, Tozo,Ohba, Masashi
, p. 144 - 151 (2007/10/02)
With the aim of establishing the stucture of the Alangium alkaloid desmethylpsychotrine, stereospecific syntheses of two alternative structures, (+/-)-9-demethylpsychotrine (1) and (+/-)-10-demethylpsychotrine (2), have been achieved through a "lactim eth
CONVERSION OF ETHYL CINCHOLOIPONATE INTO A TRICYCLIC INTERMEDIATE ADAPTABLE TO CHIRAL SYNTHESES OF 10-DEMETHYLATED ALANGIUM ALKALOIDS
Fujii, Tozo,Ohba, Masashi,Suzuki, Hitoshi
, p. 705 - 708 (2007/10/02)
The title (-)-tricyclic amino ester VII has been synthesized by means of an initial condensation of 4-benzyloxy-3-methoxyphenacyl bromide with (+)-ethyl cincholoiponate (VIII), derived from the Cinchona alkaloid cinchonine, and succeeding steps proceeding
