Synthesis of phenanthroindolizidines. II. The synthesis of (±)-tylocrebrine, (±)-tylophorine, (±)-antofine, and (±)-2,3-dimethoxyphenanthroindolizidine

Australian Journal of Chemistry
1970.0

Abstract

<jats:p> A new synthesis of the racemic forms of the phenanthroindolizidine alkaloids, tylocrebine, tylophorine, and antofine, together with the previously unknown 2,3-dimethoxyphenanthroindolizidine, is described. Some features of the n.m.r. spectra of the final products and certain of the synthetic intermediates are discussed.

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