Propane sultone → 3-{[(1S)-2-Amino-2-oxo-1-phenylethyl]amino}propane-1-sulfonic acid

HRID 239771

반응식

HRID 239771 반응식
[CH:1]1[CH:6]=[CH:5][C:4]([C@H:7]([NH2:11])[C:8]([NH2:10])=[O:9])=[CH:3][CH:2]=1.[CH2:12]1[CH2:18][S:15](=[O:17])(=[O:16])[O:14][CH2:13]1>O1CCCC1.O1CCOCC1>[NH2:10][C:8](=[O:9])[C@@H:7]([NH:11][CH2:13][CH2:12][CH2:18][S:15]([OH:17])(=[O:16])=[O:14])[C:4]1[CH:3]=[CH:2][CH:1]=[CH:6][CH:5]=1

참가 물질

5

반응물 2

HCID 14264Propane sultoneHCID 729986(S)-(+)-2-Phenylglycine amide

생성물 1

HCID 160360603-{[(1S)-2-Amino-2-oxo-1-phenylethyl]amino}propane-1-sulfonic acid수율 50%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 312751,4-Dioxane용매

실험 절차

To a solution of L-Phenylglycine amide (670 mg, 5.9 mmol) in tetrahydrofuran (10 mL) and 1,4-dioxane (4 mL) was added 1,3-propanesultone (674 mg, 5.6 mmol). The solution stirred at reflux for 2 hours. The reaction was cooled to room temperature. The solid was collected by filtration and washed with acetone (2×20 mL). The solid was dissolved in 50% water/EtOH mL). Dowex Marathon C ion exchange resin (strongly acidic) was added to the solution. The suspension was stirred for 15 minutes before the resin was removed by filtration. The filtrate was evaporated under reduced pressure. The solid was suspended in acetone (50 mL), filtered and dried in the vacuum oven (50° C.), affording the title compound (743 mg, 50%). 1H NMR (D2O, 500 MHz) δ ppm 7.38 (m, 5H), 4.92, (s, 1H), 3.01 (m, 1H), 2.91 (m, 1H), 2.78 (t, 2H, J=7.3 Hz), 2.0 (m, 2H). 13C (D2O, 125 MHz) δ ppm 170.15, 130.95, 130.24, 129.94, 128.74, 63.40, 47.99, 44.92, 21.27. [α]D=−124° (c=0.0041 in water), ES-MS 271 (M−1).

후처리

  1. temperatureat reflux for 2 hours
  2. filtrationThe solid was collected by filtration
  3. washwashed with acetone (2×20 mL)
  4. dissolutionThe solid was dissolved in 50% water/EtOH mL)
  5. additionDowex Marathon C ion exchange resin (strongly acidic) was added to the solution
  6. stirringThe suspension was stirred for 15 minutes before the resin
  7. customwas removed by filtration
  8. customThe filtrate was evaporated under reduced pressure
  9. filtrationfiltered
  10. customdried in the vacuum oven (50° C.)

출처 및 근거

ORD 기록
ord-154f64e7df6544cba4b180e3005225a9
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08642801B2

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