1224845-08-2Relevant academic research and scientific papers
An efficient and general method for the stereodivergent syntheses of tadalafil-like tetracyclic compounds
Xiao, Sen,Shi, Xiao-Xin,Ni, Feng,Xing, Jing,Yan, Jing-Jing,Liu, Shi-Ling
, p. 1711 - 1716 (2010)
A clean and general DBU-catalyzed epimerization at C-12a position of the tadalafil-like tetracyclic compounds has been fully studied. In addition, by using this clean epimerization as the key step, four stereomers of 6-d 1-tadalafil were stereodivergently synthesized from, both L- and D-tryptophan methyl ester hydrochlorides and deuterated piperonal.
