Dichloromethane → Tert-butyl (2S,3R)-3-(tert-butyldimethylsilyloxy)-4-((S)-2,2-dimethyl-6-neopentyl-1,2,3,4-tetrahydroquinolin-4-ylamino)-1-(3-fluorophenyl)butan-2-ylcarbamate

HRID 20039

Reaction equation

HRID 20039 reaction equation
[Si:1]([O:8][C@H:9]([CH:27]=O)[C@@H:10]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([F:18])[CH:13]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH3:29][C:30]1([CH3:46])[CH2:39][C@H:38]([NH2:40])[C:37]2[C:32](=[CH:33][CH:34]=[C:35]([CH2:41][C:42]([CH3:45])([CH3:44])[CH3:43])[CH:36]=2)[NH:31]1.C(Cl)Cl.COC(OC)OC.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>>[Si:1]([O:8][C@H:9]([CH2:27][NH:40][C@@H:38]1[C:37]2[C:32](=[CH:33][CH:34]=[C:35]([CH2:41][C:42]([CH3:45])([CH3:44])[CH3:43])[CH:36]=2)[NH:31][C:30]([CH3:46])([CH3:29])[CH2:39]1)[C@@H:10]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:23])([CH3:25])[CH3:24])[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([F:18])[CH:13]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]

Participants

6

Reactant 5

HCID 6344DichloromethaneHCID 9005Trimethyl orthoformateHCID 5049666Sodium triacetoxyborohydrideHCID 67305468(S)-2,2-dimethyl-6-neopentyl-1,2,3,4-tetrahydroquinolin-4-amineHCID 86614118tert-butyl (2S,3S)-3-(tert-butyldimethylsilyloxy)-1-(3-fluorophenyl)-4-oxobutan-2-ylcarbamate

Product 1

HCID 86614130Tert-butyl (2S,3R)-3-(tert-butyldimethylsilyloxy)-4-((S)-2,2-dimethyl-6-neopentyl-1,2,3,4-tetrahydroquinolin-4-ylamino)-1-(3-fluorophenyl)butan-2-ylcarbamate

Procedure

To a solution of tert-butyl (2S,3S)-3-(tert-butyldimethylsilyloxy)-1-(3-fluorophenyl)-4-oxobutan-2-ylcarbamate (0.148 g, 0.360 mmol) and (S)-2,2-dimethyl-6-neopentyl-1,2,3,4-tetrahydroquinolin-4-amine (0.0886 g, 0.360 mmol) in DCM (7.19 ml, 0.360 mmol) was added trimethoxymethane (0.394 ml, 3.60 mmol). The resulting solution was stirred for 1 hour at which time, sodium triacetoxyborohydride (0.229 g, 1.08 mmol) was added. The solution was then stirred for 30 minutes, quenched with saturated Rochelle's salt and stirred for an additional 20 minutes. The mixture was transferred to a sep. funnel containing DCM and H2O. The aqueous layer was washed 4× with DCM. The organic layers were combined, washed 1× with brine, dried with MgSO4, filtered and concentrated to afford the title compound. MS m/z: 642 (M+1).

Workup

  1. additionwas added
  2. customquenched with saturated Rochelle's salt
  3. stirringstirred for an additional 20 minutes
  4. additionfunnel containing DCM and H2O
  5. washThe aqueous layer was washed 4× with DCM
  6. washwashed 1× with brine
  7. dry with materialdried with MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated

Sources & evidence

ORD record
ord-0feb4bd794af4aba8348f04397537e43
Source dataset
uspto-grants-2010_06
Patent number
US07745484B2

Linked notes

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