(+)-8-Phenylmenthol → HCID 69303668, 화합물

HRID 635977

반응식

HRID 635977 반응식
[Br:1][C:2]1[CH:3]=[C:4]([CH:9]2[C:14]3[S:15](=[O:19])(=[O:18])[CH2:16][CH2:17][C:13]=3[NH:12][C:11]3[CH2:20][O:21][CH2:22][C:23](=[O:24])[C:10]2=3)[CH:5]=[CH:6][C:7]=1[F:8].CC(C)([O-])C.[K+].Cl[C:32]([O:34][CH:35]1[CH:40]([C:41]([C:44]2[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=2)([CH3:43])[CH3:42])[CH2:39][CH2:38][CH:37]([CH3:50])[CH2:36]1)=[O:33].C1(C(C)(C)C2CCC(C)CC2O)C=CC=CC=1>C1COCC1.C(Cl)Cl>[Br:1][C:2]1[CH:3]=[C:4]([CH:9]2[C:14]3[S:15](=[O:18])(=[O:19])[CH2:16][CH2:17][C:13]=3[N:12]([C:32]([O:34][C@@H:35]3[CH2:36][C@H:37]([CH3:50])[CH2:38][CH2:39][C@H:40]3[C:41]([CH3:42])([C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=3)[CH3:43])=[O:33])[C:11]3[CH2:20][O:21][CH2:22][C:23](=[O:24])[C:10]2=3)[CH:5]=[CH:6][C:7]=1[F:8]

참가 물질

7

반응물 4

HCID 577105(+)-8-PhenylmentholHCID 9887983(+)-9-(3-Bromo-4-fluorophenyl)-2,3,5,9-tetrahydro-4h-pyrano[3,4-b]thieno[2,3-e]pyridin-8(7h)-one 1,1-dioxideHCID 145714908-Phenylmenthol chloroformateHCID 23665647Potassium tert-butoxide

생성물 1

HCID 69303668HCID 69303668, 화합물

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 8028Tetrahydrofuran용매3회

실험 절차

To a suspension of the product from Example 11D (1.58 g, 3.7 mmol) in THF (40 mL) at 0° C. under a nitrogen atmosphere was added a 1M solution of potassium tert-butoxide in THF (4.1 mL) dropwise over 5 minutes. The mixture was stirred at ambient temperature for 30 minutes, cooled to 0° C., treated with a solution of 8-phenylmenthol chloroformate prepared from (−)-8-phenylmenthol as described in (Yamamoto, Y., J. Amer. Chem. Soc. (1992), 114, 121-125) (1.31 g, 4.4 mmol) in THF (20 mL) over 5 minutes, stirred at ambient temperature for 16 hours, diluted with methylene chloride (150 mL) and washed with aqueous sodium bicarbonate (30 mL). The layers were separated and the aqueous layer was extracted with methylene chloride (50 mL). The combined organic layers were dried (MgSO4), filtered and concentrated. The residue was purified by flash chromatography over silica gel (3:2:1 chloroform/hexanes/diethyl ether) to provide 0.98 g of the less polar diasteriomer.

후처리

  1. temperaturecooled to 0° C.
  2. stirringstirred at ambient temperature for 16 hours
  3. washwashed with aqueous sodium bicarbonate (30 mL)
  4. customThe layers were separated
  5. extractionthe aqueous layer was extracted with methylene chloride (50 mL)
  6. dry with materialThe combined organic layers were dried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by flash chromatography over silica gel (3:2:1 chloroform/hexanes/diethyl ether)
  10. customto provide 0.98 g of the less polar diasteriomer

출처 및 근거

ORD 기록
ord-73265167ee1d421db5dd781435b3ae12
출처 데이터셋
uspto-grants-2001_02
특허 번호
US06191140B1

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