Phosphorochloridic acid, dimethyl ester → (3S)-4-[4-(2-acetyl-1-methyl-1H-imidazol-4-yl)phenyl]-3-[([3-chloro-4-[(1-methylethyl)oxy]phenyl}carbonyl)amino]butyl dimethyl phosphate

HRID 730355

反応式

HRID 730355 の反応式
[C:1]([C:4]1[N:5]([CH3:34])[CH:6]=[C:7]([C:9]2[CH:14]=[CH:13][C:12]([CH2:15][C@H:16]([NH:20][C:21](=[O:33])[C:22]3[CH:27]=[CH:26][C:25]([O:28][CH:29]([CH3:31])[CH3:30])=[C:24]([Cl:32])[CH:23]=3)[CH2:17][CH2:18][OH:19])=[CH:11][CH:10]=2)[N:8]=1)(=[O:3])[CH3:2].[P:35](Cl)([O:39][CH3:40])([O:37][CH3:38])=[O:36].CCOC(C)=O.CO>C(Cl)Cl.CN(C1C=CN=CC=1)C>[P:35]([O:39][CH3:40])([O:37][CH3:38])([O:19][CH2:18][CH2:17][C@@H:16]([NH:20][C:21]([C:22]1[CH:27]=[CH:26][C:25]([O:28][CH:29]([CH3:30])[CH3:31])=[C:24]([Cl:32])[CH:23]=1)=[O:33])[CH2:15][C:12]1[CH:13]=[CH:14][C:9]([C:7]2[N:8]=[C:4]([C:1](=[O:3])[CH3:2])[N:5]([CH3:34])[CH:6]=2)=[CH:10][CH:11]=1)=[O:36]

参加物

6

反応物 3

HCID 101863Phosphorochloridic acid, dimethyl ester2 回HCID 21584119Ethylacetate methanolHCID 57594136(S)-N-(1-(4-(2-acetyl-1-methyl-1H-imidazol-4-yl)phenyl)-4-hydroxybutan-2-yl)-3-chloro-4-isopropoxybenzamide

生成物 1

HCID 57594157(3S)-4-[4-(2-acetyl-1-methyl-1H-imidazol-4-yl)phenyl]-3-[([3-chloro-4-[(1-methylethyl)oxy]phenyl}carbonyl)amino]butyl dimethyl phosphate収率 77.1%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒2 回HCID 6344Dichloromethane溶媒

実験手順

To a solution of N-((1S)-1-{[4-(2-acetyl-1-methyl-1H-imidazol-4-yl)phenyl]methyl}-3-hydroxypropyl)-3-chloro-4-[(1-methylethyl)oxy]benzamide (500 mg, 1.04 mmol) in dry CH2Cl2 (10 mL) under N2, was added dimethyl chlorophosphate (748 mg, 5.18 mmol) followed by DMAP (660 mg, 5.41 mmol) at rt. After 30 min, TLC (95:5 EtOAc/MeOH) showed ˜50% conversion, so an additional portion of dimethyl chlorophosphate (748 mg, 5.18 mmol) and DMAP (660 mg, 5.41 mmol) were added. After an additional 30 min, the reaction was quenched with saturated aqueous NH4Cl and diluted with CH2Cl2. The aqueous layer was back-extracted with CH2Cl2 and the combined organics were dried (Na2SO4), filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography (100% EtOAc; isocratic on Analogix) to give 475 mg (77%) of the title compound as a pale yellow oil. LC/MS (ES) m/e 592.4 (M+H)+. Note that the product was contaminated with ˜1 eq of the starting dimethyl chlorophosphate/dimethyl hydrogenphosphate reagent and carried on as is.

後処理

  1. waitAfter an additional 30 min
  2. customthe reaction was quenched with saturated aqueous NH4Cl
  3. additiondiluted with CH2Cl2
  4. extractionThe aqueous layer was back-extracted with CH2Cl2
  5. dry with materialthe combined organics were dried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel chromatography (100% EtOAc; isocratic on Analogix)

出典と根拠

ORDレコード
ord-c79d9f1cb2a04b48a794d53d182e6d5d
出典データセット
uspto-grants-2009_09
特許番号
US07582668B2

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