SIB-1663, S-1663

Chemical Name: 7-Methoxy-2,3,3a,4,5,9b-hexahydro-1H-pyrrolo[3,2-h]isoquinoline
CAS No. 179064-11-0
项目整合开发状态: Preclinical
项目研究机构: Merck & Co. (Originator)
合成路线:Alkylation of isoquinolone (I) with nitroethylene (II) in the presence of lithium diisopropylamide and ZnCl2 afforded nitroethyl compound (III).Reduction of nitro group with H2 and Raney Nickel proceeded with simultaneous cyclization to give the pyrroloisoquinoline (IV),which was then reduced with NaBH3CN to the corresponding pyrrolidine,predominantly with the cis stereochemistry.Resolution of enantiomers was accomplished by fractional recrystallization using di-p-toluoyltartaric acid.