Hydrochloric Acid → (R)-Methyl (4-(isopropylsulfonyl)-3-(pyrrolidin-2-yl)phenyl)carbamate hydrochloride

HRID 1515499ノート

反応式

HRID 1515499 の反応式
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([S:20]([CH:23]([CH3:25])[CH3:24])(=[O:22])=[O:21])=[C:6]([C@H:8]2[CH2:12][CH2:11][CH2:10][N:9]2C(OC(C)(C)C)=O)[CH:7]=1.[Cl:26][C:27]([O:29][CH3:30])=[O:28].Cl>N1C=CC=CC=1>[ClH:26].[CH:23]([S:20]([C:5]1[CH:4]=[CH:3][C:2]([NH:1][C:27](=[O:28])[O:29][CH3:30])=[CH:7][C:6]=1[C@H:8]1[CH2:12][CH2:11][CH2:10][NH:9]1)(=[O:21])=[O:22])([CH3:24])[CH3:25]

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 6586Methyl chloroformateHCID 57942759(R)-tert-butyl 2-(5-amino-2-(isopropylsulfonyl)phenyl)pyrrolidine-1-carboxylate

生成物 1

HCID 86645208(R)-Methyl (4-(isopropylsulfonyl)-3-(pyrrolidin-2-yl)phenyl)carbamate hydrochloride

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

実験手順

To 1F (0.1 g, 0.27 mmol) in pyridine (1 mL) at 0° C. was added methyl chloroformate (57 (μL, 0.54 mmol). After 2.0 h of stirring at rt the reaction was acidified with 1M HCl to pH 3-4. The product was extracted with ethyl acetate and was washed with brine and dried over sodium sulfate. After evaporation of the solvent, the crude product was redissolved in ethyl acetate (1.5 mL) and hydrogen chloride (2 mL, 4M in dioxane) was added. The reaction was stirred for 3 h at rt. The solvent was removed and placed on the lyophilizer to give 0.15 g white solid 1G. 1H NMR (400 MHz, Methanol-d4) δ ppm 1.25 (t, J=7.09 Hz, 3H) 1.37 (d, J=6.85 Hz, 3 H) 2.13-2.31 (m, 1H) 2.31-2.47 (m, 2H) 2.47-2.63 (m, 1H) 3.36-3.56 (m, 3H) 3.73-3.91 (m, 3H) 5.43 (t, J=7.70 Hz, 1H) 7.66 (dd, J=8.80, 2.20 Hz, 1H) 7.97 (d, J=8.80 Hz, 1H) 8.11 (d, J=1.96 Hz, 1H).

後処理

  1. extractionThe product was extracted with ethyl acetate
  2. washwas washed with brine
  3. dry with materialdried over sodium sulfate
  4. customAfter evaporation of the solvent
  5. dissolutionthe crude product was redissolved in ethyl acetate (1.5 mL)
  6. additionhydrogen chloride (2 mL, 4M in dioxane) was added
  7. stirringThe reaction was stirred for 3 h at rt
  8. customThe solvent was removed

出典と根拠

ORDレコード
ord-49144a6ad06744cdb1bbfa8fc0fa9e9e
出典データセット
uspto-grants-2012_07
特許番号
US08222453B2

反応ノート

読み込み中…