Evaluation of Lactam Protection for Synthesis of 2′-O-Alkylated Uridines

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• NMR-data for 1h: 1H-NMR (CDCl3): 1.1 (d, 18H), 1.19 (m, 3H), 3.46 (dd, 1H), 3.50 (dd, 1H), 3.82 (s, 3H), 4.25 (m, 1H), 4.32 (m, 1H), 4.41 (dd, 1H), 4.70 (d, 1H), 5.47 (d, 1H), 5.61 (s, 2H), 5.84 (d, 1H), 6.84 (d, 2H), 7.26-7.41 (m, 12H), 7.88 (d, 1H); 13C-NMR (CDCl3): 12.1, 17.8, 55.2, 62.3, 64.9, 70.3, 75.9, 84.0, 87.3, 91.1, 101.9, 113.3, 127.3, 128.1, 128.4, 130.5, 134.6, 138.5, 143.7, 143.9, 151.5, 158.8, 162.1
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