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. 2018 Jan 24;5(1):171510. doi: 10.1098/rsos.171510

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© 2018 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Scheme 2. — Reagents and conditions: (d) CH₂Cl₂, oxalyl chloride, secondary amine or primary alcohol, room temperature.