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MassMS-IW-7348 N-benzyloxycarbonyl-O-tert-butyl-L-serine C15H21NO5 (Mass of molecular ion: 295)
Source Temperature: 170 °C Sample Temperature: 140 °C Direct, 75 eV
15.0 1.1 17.0 1.1 18.0 6.5 27.0 3.1 28.0 4.2 29.0 8.1 31.0 1.3 39.0 7.0 40.0 1.5 41.0 22.9 42.0 5.1 43.0 3.4 44.0 3.4 50.0 2.4 51.0 5.0 52.0 1.4 53.0 2.7 55.0 3.7 56.0 7.9 57.0 82.2 58.0 4.3 59.0 17.8 60.0 1.3 63.0 1.4 65.0 5.1 70.0 1.4 74.0 2.3 77.0 12.8 78.0 3.2 79.0 28.0 80.0 2.5 86.0 4.4 87.0 8.6 89.0 2.9 90.0 3.6 91.0 100.0 92.0 11.7 100.0 1.4 101.0 2.2 104.0 1.0 105.0 2.1 107.0 33.2 108.0 39.1 109.0 3.1 132.0 2.1 148.0 22.0 149.0 2.3 150.0 1.2 157.0 1.5 172.0 5.9 209.0 22.1 210.0 2.5 222.0 1.3 238.0 1.8 239.0 7.9 240.0 1.5 265.0 2.0
400 MHz in CDCl3
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1H NMR 399.65 MHz C15 H21 N O5 0.042 g : 0.5 ml CDCl3 N-benzyloxycarbonyl-o-tert-butyl-L-serine 
Assign. Shift(ppm)
A 10. B 7.36 C 7.33 D 5.67 E *1 5.140 F *1 5.128 G 4.498 J *2 3.882 K *2 3.592 L 1.147
Hz ppm Int.2945.25 7.370 87 2942.35 7.363 72 2940.06 7.357 84 2934.72 7.344 26 2931.82 7.336 31 2930.91 7.334 32 2928.16 7.327 24 2926.64 7.324 24 2052.92 5.137 66 2050.32 5.131 61 458.37 1.147 1000
in CDCl3
KBr disc
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