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MassMS-IW-9262 N-tert-butoxycarbonyl-L-glutamic acid 1-benzyl ester C17H23NO6 (Mass of molecular ion: 337)
Source Temperature: 160 °C Sample Temperature: 140 °C Direct, 75 eV
17.0 1.0 18.0 5.6 27.0 4.8 28.0 12.3 29.0 9.3 30.0 1.0 31.0 2.9 36.0 2.6 38.0 1.9 39.0 12.5 40.0 2.6 41.0 46.1 42.0 2.8 43.0 2.4 44.0 25.4 45.0 1.0 50.0 2.0 51.0 3.8 52.0 1.3 53.0 2.0 54.0 1.7 55.0 8.2 56.0 20.9 57.0 100.0 58.0 4.7 59.0 11.3 63.0 1.9 65.0 9.7 77.0 3.9 78.0 1.0 79.0 3.4 82.0 1.7 83.0 1.6 84.0 83.1 85.0 7.2 89.0 2.6 90.0 2.0 91.0 84.3 92.0 9.4 102.0 75.8 103.0 4.2 105.0 1.2 107.0 4.8 108.0 3.5 128.0 1.1 146.0 29.7 147.0 1.9 202.0 22.4 203.0 2.4 281.0 1.2
400 MHz in CDCl3
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1H NMR 399.65 MHz C17 H23 N O6 0.038 g : 0.5 ml CDCl3 N-tert-butoxycarbonyl-L-glutamic acid 1-benzyl ester 
Assign. Shift(ppm)
A 7.35 B 5.21 C 5.168 D 4.40 E 2.42 F *1 2.20 G *1 1.958 J 1.43
Hz ppm Int.2950.29 7.383 45 2948.61 7.378 43 2942.66 7.364 151 2941.13 7.360 211 2937.62 7.351 1000 2926.94 7.324 98 2921.91 7.312 38 2085.88 5.220 45 2077.64 5.199 63 2065.89 5.170 385 2064.82 5.167 380 979.92 2.452 63 972.44 2.434 120 969.54 2.426 82 962.98 2.410 122 955.05 2.390 76 880.43 2.204 34 872.50 2.184 38 867.61 2.171 34 789.34 1.976 35 782.93 1.960 40 775.30 1.940 34 569.76 1.426 972
in CDCl3
KBr disc
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