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Communication | Regular issue | Vol 6, No. 11, 1977, pp.1811-1816
Published online, 1st January, 1970
DOI: 10.3987/R-1977-11-1811
Structure of Casedine

Tuticorin R. Govindachari, Bantwal R. Pai,* Hosbett Suguna, and Manakkal S. Premila

*Department of Chemistry, Presidency College, Madras 600005, India

Abstract

A reinvestigation of the spectral data of the synthetic 1-hydroxy-2,10,11-trimethoxyberbine and natural caseadine shows that their nmr spectra are almost identical with very minor differences; so are their ir spectra in solution except for an additional band at 720 cm-1 in the natural product. These minor differences could not be due to structural or stereochemical differences but perhaps due to some impurity in the natural sample.