2,3-Dihydro-2,2-dimethyl-7-[N-(N-methyl-N-methoxycarbonylaminothio)-N-methylcarbamoyloxy]benzofuran

2,4-Dimethyl-5-oxo-2,4-diaza-3-thia-6-oxaheptanoic acid 2,2-dimethyl-2,3-dihydrobenzofuran-7-yl ester