H. Hara et al., A NOVEL RING-CLEAVAGE AND RECYCLIZATION OF N-CYANOMETHYL-1,2,3,4-TETRAHYDROISOQUINOLINIUM METHIODIDES - A BIOMIMETIC SYNTHESIS OF LITEBAMINE, Tetrahedron, 51(37), 1995, pp. 10189-10204
Treatment of omethyl-6-hydroxy-1,2,3,4-tetrahydroisoquinolinium methio
dide (1) with NaOMe in MeOH caused C1-N fission and simultaneous recyc
lization to give oxy-5-methoxymethyl-1,2,3,4-tetrahydroisoquinoline (2
). By using of the rearrangement synthesis of litebamine (4) was carri
ed out.