Sodium Hydroxide → HCID 86594680, compound
Reaction equation
[CH3:1][C:2]1N=[C:6]([CH2:8][OH:9])[CH:5]=[CH:4][CH:3]=1.[OH-:10].[Na+].Cl[C:13]1[N:18]=[C:17]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[C:22]([Cl:28])[CH:21]=2)[N:16]=[C:15]([NH:29][CH:30]2[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]2)[N:14]=1>C1C=CC=CC=1>[Cl:28][C:22]1[CH:21]=[C:20]([NH:19][C:17]2[N:16]=[C:15]([NH:29][CH:30]3[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]3)[N:14]=[C:13]([O:9][CH2:8][CH:6]3[CH:5]=[CH:4][CH:3]=[C:2]([CH3:1])[O:10]3)[N:18]=2)[CH:25]=[CH:24][C:23]=1[O:26][CH3:27]Participants
Conditions
- Temperature
- 25 °C
Procedure
A mixture of 6-methyl-2-pyridylmethanol (145 mg, 1.17 mmol) and sodium hydroxide (63 mg, 1.57 mmol) in benzene (15 mL) was heated to reflux for 3 hours with stirring under nitrogen atmosphere and then cooled to 25° C. followed by the addition of compound 133 (0.30 g, 0.785 mmol) at same temperature. The mixture was heated to reflux for 12 hours, concentrated under vacuum and diluted with water (20 mL). The mixture was then extracted with EtOAc (2×20 mL). The combined organic layers were washed with water (2×10 mL), dried over anhydrous sodium sulphate and concentrated under vacuum. The residue thus obtained was purified by column chromatography (70–80% EtOAc-Hexane) to afford the title compound E30 as a hygroscopic solid (257 mg, 70%). HPLC: Inertsil ODS 3V (250×4.6 mm) 5 microns [solvent A=0.01 M KH2PO4 (pH 7.0); solvent B=CH3CN], Gradient elution program: T/% B=0/60, 10/60, 25/80, 40/80, 45/60, 50/60; 268 nm, Rt 23.93 min, 99.14% purity; MS (CI): m/z 469 (M+, 100).
Workup
- temperaturewas heated
- temperatureto reflux for 3 hours
- temperatureThe mixture was heated
- temperatureto reflux for 12 hours
- concentrationconcentrated under vacuum
- additiondiluted with water (20 mL)
- extractionThe mixture was then extracted with EtOAc (2×20 mL)
- washThe combined organic layers were washed with water (2×10 mL)
- dry with materialdried over anhydrous sodium sulphate
- concentrationconcentrated under vacuum
- customThe residue thus obtained
- customwas purified by column chromatography (70–80% EtOAc-Hexane)
Sources & evidence
- ORD record
- ord-71d73d071d6d4aa2aff98e412d60b731
- Source dataset
- uspto-grants-2007_01
- Patent number
- US07169785B2
Reaction notes
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