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Communication | Regular issue | Vol 24, No. 5, 1986, pp.1257-1260
Published online, 1st January, 1970
DOI: 10.3987/R-1986-05-1257
Structure and Syntheses of SEN-125 and Oxotomaymycin

Miwako Mori,* Yasuhiro Uozumi, and Yoshio Ban

*Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12 Nishi 6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan


The structure of SEN-215 was determined as (11aS)(E)-2-ethylidene-2,3,5,10,11,11a-hexahydro-8-hydroxy-7-methoxy-5-oxo-1H-pyrrolo[2,1-c][1,4]benzodiazepine by conversion of (E)- and (Z)-pretomaymycin into (E)- and (Z)-SEN-215.