HCID 178497681、化合物 → 4-[2-(2-amino-4-oxo-5,6,7,8-tetrahydro-1H-pyrido[2,3-d]pyrimidin-6-yl)ethyl]-1H-pyrrole-2-carboxylic acid
反応式
C([NH:7][C:8]1[N:9]=[C:10]([OH:39])[C:11]2[CH2:17][CH:16]([CH2:18][CH2:19][C:20]3[CH:21]=[C:22]([C:35]([O:37]C)=[O:36])[N:23]([Si](C(C)C)(C(C)C)C(C)C)[CH:24]=3)[CH2:15][NH:14][C:12]=2[N:13]=1)(=O)C(C)(C)C>[OH-].[Na+]>[NH2:7][C:8]1[N:9]=[C:10]([OH:39])[C:11]2[CH2:17][CH:16]([CH2:18][CH2:19][C:20]3[CH:21]=[C:22]([C:35]([OH:37])=[O:36])[NH:23][CH:24]=3)[CH2:15][NH:14][C:12]=2[N:13]=1参加物
3
実験手順
A suspension of methyl 4-[2-(2-pivaloylamino-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidin-6-yl)ethyl]-1-triisopropylsilylpyrrole-2-carboxylate (390.4 mg, 0.7 mmol) in 1N sodium hydroxide (1 mL) was heated under reflux until clear (about 4 hours). The mixture was cooled to room temperature, extracted with ethyl acetate, and then acidified with glacial acetic acid. The solid which formed was collected by filtration, washed with water, and dried in vacuo to give 4-[2-(2-amino-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidin-6-yl)ethyl]pyrrole-2-carboxylic acid (199 mg, 94%), mp >260° C.: 1H NMR (DMSO-d6) δ 11.39 (s, 1H), 9.72 (br s, 1H), 6.73 (s, 1H), 6.55 (s, 1H), 6.25 (s, 1H), 5.93 (s, 2H), 3.16 (br d, 1H, J=9.5 Hz), 2.72 (m, 1H), 2.43 (m, 3H), 1.75 (m, 1H), 1.42-1.53 (m, 3H); 1H NMR (CD3OD) δ 6.69 (s, 1H), 6.63 (s, 1H), 3.31 (brd, 1H, J=12.1 Hz), 2.91 (dd, 1H, J=12.1, 9.2 Hz), 2.67 (dd, 1H, J=15.3, 4.4 Hz), 2.55 (m, 2H), 1.99 (dd, 1H, J=15.3, 9.4 Hz), 1.76 (m, 1H), 1.60 (m, 2H).