CONCISE SYNTHESIS OF N-PROTECTED CARBOXYALKYL ETHER AMINES

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• The newly formed methylenic carbon appears at δ 68.89 ppm (assigned using HETCOR) and not at - δ 43 ppm confirms the structure of 2b. The methylenic carbon of N-(tert-butoxycarbonyl)-glycine tert-butyl ester in CDCI3 resonates at δ 43.03 ppm
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