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. Author manuscript; available in PMC: 2019 Aug 6.

Published in final edited form as: J Org Chem. 2019 Feb 22;84(6):3055–3073. doi: 10.1021/acs.joc.8b02704

Table 5.

Negatively Charged AAs^a

l-aspartic acid (Asp/D)		l-glutamic acid (Glu/E)
α	3.891 (dd, 1H), 3.66, 8.87	α	3.748 (dd, 1H), 7.30, 4.64
β2	2.801 (dd, 1H), 3.66, −17.5	β2	2.043 (dddd, 1H), 7.30, −14.8, 6.35, 8.66
β3	2.664 (dd, 1H), 8.87, −17.5	β3	2.117 (dddd, 1H), 4.64, −14.8, 8.71, 6.78
		γ2	2.331 (ddd, 1H), 6.35, 8.71, −16.0
		γ3	2.349 (ddd, 1H), 8.66, 6.78, −16.0

^a

NMR parameters determined by HiFSA analysis: δ_H (multiplicity, rel. integrals), J [Hz].