Triethylamine → N-[(RS)-1-(2-Bromo-5-fluoro-pyridin-4-yl)-2-((R)-1-cyano-2,2,2-trifluoro-1-methyl-ethoxy)-1-methyl-ethyl]-2-nitro-benzenesulfonamide

HRID 474087노트

반응식

HRID 474087 반응식
[Br:1][C:2]1[CH:7]=[C:6]([C:8]([NH:21][S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[N+:31]([O-:33])=[O:32])(=[O:24])=[O:23])([CH3:20])[CH2:9][O:10][C@@:11]([CH3:19])([C:15]([F:18])([F:17])[F:16])[C:12]([NH2:14])=O)[C:5]([F:34])=[CH:4][N:3]=1.CCN(CC)CC.FC(F)(F)C(OC(=O)C(F)(F)F)=O>C(Cl)Cl.C([O-])([O-])=O.[Na+].[Na+]>[Br:1][C:2]1[CH:7]=[C:6]([C:8]([NH:21][S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[N+:31]([O-:33])=[O:32])(=[O:23])=[O:24])([CH3:20])[CH2:9][O:10][C@@:11]([C:12]#[N:14])([CH3:19])[C:15]([F:18])([F:17])[F:16])[C:5]([F:34])=[CH:4][N:3]=1

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 9845Trifluoroacetic anhydrideHCID 86668057(R)-2-[(RS)-2-(2-Bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonylamino)-propoxy]-3,3,3-trifluoro-2-methyl-propionamide

생성물 1

HCID 86668058N-[(RS)-1-(2-Bromo-5-fluoro-pyridin-4-yl)-2-((R)-1-cyano-2,2,2-trifluoro-1-methyl-ethoxy)-1-methyl-ethyl]-2-nitro-benzenesulfonamide

시약·촉매·용매 2

HCID 6344Dichloromethane용매2회HCID 10340Sodium Carbonate용매

실험 절차

To a dry solution of (R)-2-[(RS)-2-(2-bromo-5-fluoro-pyridin-4-yl)-2-(2-nitro-benzenesulfonyl-amino)-propoxy]-3,3,3-trifluoro-2-methyl-propionamide (860 mg, 1.35 mmol) in DCM (9 ml) was added at rt NEt3 (0.470 ml, 342 mg, 3.38 mmol). At 0° C., trifluoroacetic anhydride (0.229 ml, 340 mg, 1.62 ml) was added dropwise. The reaction mixture was allowed to warm to rt and to stir for 1.5 h. The reaction mixture was diluted with 1M aq. Na2CO3 soln. and DCM. The phases were separated and the aq. phase was twice reextracted with DCM. The combined org. phases were dried over Na2SO4, filtered and concentrated to yield the crude title compound as an orange solid that was used in the next step without further purification (diastereomer mixture). RtH4=1.19 min; ESIMS: 555, 557 [(M+H)+]; 1H NMR (400 MHz, CDCl3): δ 8.01-7.93 (m, 2H), 7.79-7.63 (m, 3H), 7.59 (m, 1H), 4.26-4.16 (m, 2H), 1.85-1.84 (2d, 3H), 1.78-1.76 (2d, 3H).

후처리

  1. customThe phases were separated
  2. dry with materialphases were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-aa236e702a8f479cbb18f25b41584170
출처 데이터셋
uspto-grants-2014_01
특허 번호
US08637508B2

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