tert-Butanol → HCID 178445794, 화합물

HRID 709886노트

반응식

HRID 709886 반응식
[OH:1][C:2]1[C:3]([I:19])=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([C@:12]1([CH3:18])[CH2:16][O:15][C:14](=[O:17])[NH:13]1)[N:6]=[CH:5]2.[C:20]([CH:24]1[CH2:29][CH2:28][CH:27](OS(C)(=O)=O)[CH2:26][CH2:25]1)([CH3:23])([CH3:22])[CH3:21].C(=O)([O-])[O-].[Cs+].[Cs+].C(O)(C)(C)C.CC(=O)CC>C(Cl)Cl>[C:20]([C@H:24]1[CH2:29][CH2:28][C@H:27]([O:1][C:2]2[C:3]([I:19])=[C:4]3[C:9](=[CH:10][CH:11]=2)[N:8]=[C:7]([C@:12]2([CH3:18])[CH2:16][O:15][C:14](=[O:17])[NH:13]2)[N:6]=[CH:5]3)[CH2:26][CH2:25]1)([CH3:23])([CH3:22])[CH3:21]

참가 물질

7

반응물 5

HCID 6386tert-ButanolHCID 6569Methyl Ethyl KetoneHCID 10796Cesium carbonateHCID 11128255Methanesulfonic acid 4-tert-butyl-cyclohexyl ester2회HCID 67409863(R)-4-(6-Hydroxy-5-iodoquinazolin-2-yl)-4-methyloxazolidin-2-one

생성물 1

HCID 178445794HCID 178445794, 화합물수율 94%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
80 °C

실험 절차

(R)-4-(6-Hydroxy-5-iodo-quinazolin-2-yl)-4-methyl-oxazolidin-2-one (350.0 mg, 0.0009431 mol), methanesulfonic acid 4-tert-butyl-cyclohexyl ester (884.0 mg, 0.003772 mol) and cesium carbonate (921.8 mg, 0.002829 mol) were dissolved in a mixture of tert-butyl alcohol (19.9 mL, 0.208 mol) and 2-butanone (6.6 mL, 0.074 mol). The reaction mixture was heated at 80° C. for 1 hour (MW), an additional methanesulfonic acid 4-tert-butyl-cyclohexyl ester (500 mg) was added, and the mixture was heated at 80° C. for an additional for 1 hour. LC/MS indicated that reaction was completed. Removal of solvents gave a solid mixture, which was treated with DCM and filtered. The filtrate was then washed with water, brine and dried over Na2SO4. The crude mixture was then purified via chromatography (SiO2, 24 gm, 0-100% ethyl acetate/hexanes) to give 451 mg desired product (94%). 1H NMR (CHLOROFORM-d) δ: 9.55 (s, 1H), 7.94 (d, J=9.3 Hz, 1H), 7.61 (d, J=9.3 Hz, 1H), 6.07 (s, 1H), 5.16 (d, J=8.8 Hz, 1H), 4.50 (d, J=8.8 Hz, 1H), 4.24-4.42 (m, 1H), 2.24 (d, J=12.0 Hz, 2H), 1.92 (d, J=9.5 Hz, 2H), 1.76 (s, 3H), 1.63 (d, J=11.3 Hz, 1H), 1.22-1.39 (m, 2H), 1.15 (br. s., 2H), 0.81-0.98 (m, 9H). MS (M+1): 510.10.

후처리

  1. temperaturethe mixture was heated at 80° C. for an additional for 1 hour
  2. customLC/MS indicated that reaction
  3. customRemoval of solvents
  4. customgave a solid mixture, which
  5. filtrationfiltered
  6. washThe filtrate was then washed with water, brine
  7. dry with materialdried over Na2SO4
  8. customThe crude mixture was then purified via chromatography (SiO2, 24 gm, 0-100% ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-29b309e65c664c08ba4dc135684ac426
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09181191B2

반응 노트

불러오는 중…