Benzoic Acid → (2R,4R,6R)-2-Methoxy-2-((R)-3-(4-methoxybenzyl)-2-oxothiazolidin-4-yl)-6-(pent-4-enyl)-tetrahydro-2H-pyran-4-yl Benzoate
反応式
[C:1]([OH:9])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.ClC1C=C(Cl)C=C(Cl)C=1C(Cl)=O.O[C@@H:32]1[CH2:37][C@@H:36]([CH2:38][CH2:39][CH2:40][CH:41]=[CH2:42])[O:35][C@:34]([C@@H:45]2[CH2:49][S:48][C:47](=[O:50])[N:46]2[CH2:51][C:52]2[CH:57]=[CH:56][C:55]([O:58][CH3:59])=[CH:54][CH:53]=2)([O:43][CH3:44])[CH2:33]1>C1(C)C=CC=CC=1.CN(C1C=CN=CC=1)C.CCOCC>[C:1]([O:9][C@@H:32]1[CH2:37][C@@H:36]([CH2:38][CH2:39][CH2:40][CH:41]=[CH2:42])[O:35][C@@:34]([O:43][CH3:44])([C@@H:45]2[CH2:49][S:48][C:47](=[O:50])[N:46]2[CH2:51][C:52]2[CH:53]=[CH:54][C:55]([O:58][CH3:59])=[CH:56][CH:57]=2)[CH2:33]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
8
反応物 4
生成物 1
試薬・触媒・溶媒 3
実験手順
To a solution of benzoic acid (31.7 mg, 0.260 mmol) in dry toluene (5 mL) under a nitrogen atmosphere was added diisopropylethylamine (0.0435 mL, 0.250 mmol) and 2,4,6-trichlorobenzoyl chloride (0.0391 mL, 0.250 mmol). The mixture was stirred at room temperature for 3 h, after which the title compound from Example 14 (21.5 mg, 0.051 mmol) and DMAP (32.9 mg, 0.269 mmol) were added. This mixture was stirred at room temperature for 18 h, after which it was diluted with ether and washed with satd aq NH4Cl and brine, and the organic phase was dried and evaporated. Chromatography of the residue on silica gel, eluting with an ethyl acetate/dichloromethane gradient, afforded the title compound (21.7 mg, 81%) as an oil.
後処理
- stirringThis mixture was stirred at room temperature for 18 h
- washwashed with satd aq NH4Cl and brine
- customthe organic phase was dried
- customevaporated
- washChromatography of the residue on silica gel, eluting with an ethyl acetate/dichloromethane gradient
出典と根拠
- ORDレコード
- ord-dc26d78598ba4024988be08ee7a07e98
- 出典データセット
- uspto-grants-2011_10
- 特許番号
- US08039465B2
反応ノート
読み込み中…