HCID 11512623、化合物 → HCID 11635729、化合物
反応式
[F:1][C:2]([F:39])([F:38])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[CH:25]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:23]=[CH:22][C:21]=3[C:30]3[S:31][CH:32]=[C:33]([CH:35]=[O:36])[N:34]=3)[C@H:14]2[CH3:37])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.[CH3:40][Mg+].[Br-]>CCOCC>[F:39][C:2]([F:1])([F:38])[C:3]1[CH:4]=[C:5]([C@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:19][C:20]3[CH:25]=[C:24]([C:26]([F:28])([F:29])[F:27])[CH:23]=[CH:22][C:21]=3[C:30]3[S:31][CH:32]=[C:33]([CH:35]([OH:36])[CH3:40])[N:34]=3)[C@H:14]2[CH3:37])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1参加物
実験手順
To a −40° C. solution of 2-[2-({(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-4-methyl-2-oxo-1,3-oxazolidin-3-yl}methyl)-4-(trifluoromethyl)phenyl]-1,3-thiazole-4-carbaldehyde (Example 133) (43.9 mg, 0.075 mmol) in Et2O (7.5 mL) was added MeMgBr (30 μL of a 3M solution in Et2O, 0.10 mmol). The reaction was monitored closely by TLC and additional MeMgBr was added dropwise until nearly all starting aldehyde was consumed. At this point, the reaction was quenched by pouring it into saturated NH4Cl (15 mL). The mixture was extracted with EtOAc (50 mL) and the organic layer was washed with water and brine (15 mL each). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (5 to 50% EtOAc/hexanes) afforded (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-[2-[4-(1-hydroxyethyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)benzyl]-4-methyl-1,3-oxazolidin-2-one. Rf=0.17 (40% EtOAc/hexanes). LCMS=599.1 (M+1)+. 1H NMR (CDCl3, 500 MHz) δ 7.70-7.86 (m, 6H), 7.31-7.32 (m, 1H), 5.53-5.55 (m, 1H), 5.35-5.41 (m, 1H), 5.06 (m, 1H), 4.57-4.62 (m, 1H), 3.88 (m, 1H), 1.61-1.63 (m, 3H), 0.69 (d, J=6.7 Hz, 3H).
後処理
- customwas consumed
- customAt this point, the reaction was quenched
- additionby pouring it into saturated NH4Cl (15 mL)
- extractionThe mixture was extracted with EtOAc (50 mL)
- washthe organic layer was washed with water and brine (15 mL each)
- dry with materialThe organic layer was dried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
- customPurification of the residue by flash chromatography on silica gel (5 to 50% EtOAc/hexanes)
出典と根拠
- ORDレコード
- ord-6329c03c57e94eb984d96cef80c78194
- 出典データセット
- uspto-grants-2010_01
- 特許番号
- US07652049B2
反応ノート
読み込み中…