Imidazole → 2-[(tert-butyldimethylsilyl)oxy]-3-[(3R)-12-chloro-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(12),2(6),8,10-tetraen-3-yl]propanenitrile

HRID 1503986Notes

Reaction equation

HRID 1503986 reaction equation
[Cl:1][C:2]1[N:3]=[CH:4][N:5]=[C:6]2[C:13]=1[C:12]1[C@@H:11]([CH2:14][CH:15]([OH:18])[C:16]#[N:17])[CH2:10][CH2:9][C:8]=1[S:7]2.[C:19]([Si:23](Cl)([CH3:25])[CH3:24])([CH3:22])([CH3:21])[CH3:20].N1C=CN=C1>CN(C=O)C.C(Cl)Cl>[Si:23]([O:18][CH:15]([CH2:14][C@H:11]1[CH2:10][CH2:9][C:8]2[S:7][C:6]3[C:13](=[C:2]([Cl:1])[N:3]=[CH:4][N:5]=3)[C:12]1=2)[C:16]#[N:17])([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:25])[CH3:24]

Participants

6

Reactant 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 896940583-[(3R)-12-chloro-7-thia-9,11-diazatricyclo[6.4.0.0^[2,6]]dodeca-1(12),2(6),8,10-tetraen-3-yl]-2-hydroxypropanenitrile

Product 1

HCID 897809522-[(tert-butyldimethylsilyl)oxy]-3-[(3R)-12-chloro-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(12),2(6),8,10-tetraen-3-yl]propanenitrileYield 99%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 3-[(3R)-12-chloro-7-thia-9,11-diazatricyclo[6.4.0.0^[2,6]]dodeca-1(12),2(6),8,10-tetraen-3-yl]-2-hydroxypropanenitrile (170 mg, 0.61 mmol, 1.00 equiv) in 5 mL of distilled DMF was added tert-butyl(chloro)dimethylsilane (138 mg, 0.92 mmol, 1.50 equiv) and imidazole (124 mg, 1.82 mmol, 3.00 equiv) at room temperature under nitrogen. The resulting solution was stirred for 2 h at ambient temperature and diluted with DCM (30 mL), washed with brine, dried over anhydrous sodium sulfate and concentrated under vacuum to give 236 mg (99%) of 2-[(tert-butyldimethylsilyl)oxy]-3-[(3R)-12-chloro-7-thia-9,11-diazatricyclo[6.4.0.0[2,6]]dodeca-1(12),2(6),8,10-tetraen-3-yl]propanenitrile as a white solid. MS: m/z 395 (M+H)+.

Workup

  1. washwashed with brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-be1000d0de8d42cf9d24795abae1efe6
Source dataset
uspto-grants-2015_12
Patent number
US09212190B2

Reaction notes

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