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Communication | Regular issue | Vol 36, No. 4, 1993, pp.655-659
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6266
Revised Assignment of Olefinic Proton Signals in the 1H-Nmr Spectra of Dienoid-Type Erythrinan Alkaloids

Yoshisuke Tsuda,* Shinzo Hosoi, Takehiro Sano,* Hideki Suzuki, and Jun Toda

*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan


Previous assignment of the olefinic proton signals (H-1 and H-2) in the 1H-nmr spectra of dienoid-type erythrinan alkaloids was interchanged on the basis of the synthesis of the stereoisomers, nOe experiments, and theoretical calculations.