6-Aminonicotinic acid → HCID 67355805, Verbindung
Reaktionsgleichung
[C:1]([O:5][C:6]([N:8]1[CH:13]2[CH2:14][CH2:15][CH2:16][CH:9]1[CH2:10][NH:11][CH2:12]2)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:17][C:18]1[CH:26]=[CH:25][C:21]([C:22](O)=[O:23])=[CH:20][N:19]=1>>[C:1]([O:5][C:6]([N:8]1[CH:9]2[CH2:16][CH2:15][CH2:14][CH:13]1[CH2:12][N:11]([C:22]([C:21]1[CH:20]=[N:19][C:18]([NH2:17])=[CH:26][CH:25]=1)=[O:23])[CH2:10]2)=[O:7])([CH3:4])([CH3:2])[CH3:3]Komponenten
3
Versuchsvorschrift
Following general amide formation method 1, 3,9-diaza-bicyclo[3.3.1]nonane-9-carboxylic acid tert-butyl ester (170 mg, 0.751 mmol, 1.1 eq) was combined with 6-amino-nicotinic acid (94 mg, 0.683 mmol, 1.0 eq) which gave 3-(6-amino-pyridine-3-carbonyl)-3,9-diaza-bicyclo[3.3.1]nonane-9-carboxylic acid tert-butyl ester (170 mg) in 72% yield. 1H NMR (400 MHz, CDCl3-d) δ ppm 1.50 (s, 9H) 1.55-1.72 (m, 2H) 1.74-1.98 (m, 4H) 3.20 (qd, J=7.41, 4.55 Hz, 3H) 3.65-3.82 (m, J=13.20, 6.66, 6.66, 4.29 Hz, 2H) 4.18 (br. s., 1H) 4.28 (br. s., 1H) 4.66 (br. s., 1H) 4.85 (br. s., 1H) 6.58 (d, J=8.59 Hz, 1H) 7.57 (dd, J=8.59, 2.02 Hz, 1H) 8.04 (s, 1H) 8.16 (d, J=2.02 Hz, 1H) MS m/z 291.4 (M+H)+.