2-[(R)-((S)-1-Ethoxycarbonyl-ethoxycarbonyl)-methoxy-(2-methoxycarbonyl-benzoylamino)-methyl]-5-methyl-6H-[1,3]thiazine-4-carboxylic acid methyl ester
2-[(S)-((S)-1-Ethoxycarbonyl-ethoxycarbonyl)-methoxy-(2-methoxycarbonyl-benzoylamino)-methyl]-5-methyl-6H-[1,3]thiazine-4-carboxylic acid methyl ester