You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the molecule methyl 2-(2,3,4a,5,6,7,8,8a-octahydrobenzo[b][1,4]oxazin-4-yl)-4-methyl-1,3-thiazole-5-carboxylate ?
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C14H20N2O3S
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