Abstract
Oxidation of 3-aminoquinazolin-4(3H)-one derivative 3c using lead tetraacetate in methylene chloride at −20°C gave aziridine 4, while reaction of 7b and 7c under similar conditions gave the oxadiazepine derivatives 7H-naphtho[2′,1′:6,7][1,4,5]oxadiazepino[3,4-b]quinazolin-9(15H)-one (9) and 16H-naphtho[1′,2′:6,7][1,4,5]oxadiazepino[3,4-b]quinazolin-14(8H)-one (11), respectively.
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References
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