Одна статья из Perkin Trans 1
Synthesis and reactions of some novel imidazobenzoxazines and related systems
Geoff W. Danswan, Peter W. Hairsine, David A. Rowlands, John B. Taylor and Robert Westwood
J. Chem. Soc., Perkin Trans. 1, 1982, 1049 - 1058
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http://dx.doi.org/10.1039/P19820001049Organic