反応 #607481

反応方程式

103c

[4-(5-amino-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl]methyl acetate

LiOH

→

103d

収率 36.0%

10-[4-(5-amino-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-3-(hydroxymethyl)-pyridin-2-yl]-4,4-dimethyl-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-9-one

収率 36.0%

溶媒

iPrOH THF

H2O

反応条件

後処理

1. 1
   その他The mixture was evaporated in vacuo
2. 2
   その他The residue was partitioned between EtOAc and water
3. 3
   抽出The combined EtOAc extract
4. 4
   濃縮was concentrated under reduced pressure
5. 5
   その他the residue was purified by silica-gel column chromatography
6. 6
   洗浄eluting with 10:1 dichloromethane/methanol

実験手順

A mixture of 103c (1.1 g, 2.3 mmol) and LiOH (450 mg, 11.0 mmol) in iPrOH/THF (1:1, 10 mL) and H2O (2.5 mL) was stirred at 40° C. for 0.5 h. The mixture was evaporated in vacuo. The residue was partitioned between EtOAc and water. The combined EtOAc extract was concentrated under reduced pressure and the residue was purified by silica-gel column chromatography eluting with 10:1 dichloromethane/methanol to afford 103d (350 mg, 36%) as a pale yellow solid. MS-ESI: [M+H]+ 434.3. 1H NMR (500 MHz, CDCl3) δ 8.44 (d, J=5.0 Hz, 1H), 7.59 (d, J=2.0 Hz, 1H), 7.21 (d, J=5.0 Hz, 1H), 6.83 (s, 1H), 6.82 (d, J=2.0 Hz, 1H), 5.04-5.03 (m, 1H), 4.63-4.62 (m, 1H), 4.50-4.48 (m, 1H), 4.30-4.28 (m, 1H), 4.16-4.10 (m, 3H), 3.87-3.85 (m, 1H), 3.65 (s, 3H), 2.57-2.56 (m, 2H), 2.50 (s, 2H), 1.26 (s, 6H).

出典