Somsak RuchirawatWerawat LertwanawatanaPongtip ThepchumruneMahidol University2018-04-302018-04-301980-01-01Tetrahedron Letters. Vol.21, No.2 (1980), 189-192004040392-s2.0-0346490438https://repository.li.mahidol.ac.th/handle/20.500.14594/11084The annulation of isoquinoline derivatives to form the 8-oxoprotoberberine derivatives is described. The key step of the reaction involves intramolecular alkylation of the Reissert compounds. © 1980.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemistryPharmacology, Toxicology and PharmaceuticsArticleSCOPUS10.1016/S0040-4039(00)71410-9