The major product formed by oxidising (±)-armepavine methiodide with either silver nitrate or potassium ferricyanide is shown by chromatographic and spectroscopic comparisons with synthetic material to be 5,5′-bis-(1,2,3,4-tetrahydro-6,7-dimethoxy-2-methylisoquinolin-1-ylmethyl)-2,2′-dihydroxybiphenyl dimethiodide.
A. M. Choudhury, I. G. C. Coutts, A. K. Durbin, K. Schofield and D. J. Humphreys, J. Chem. Soc. C, 1969, 2070 DOI: 10.1039/J39690002070
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