Diisopropylethylamine → HCID 10000883, compound

HRID 1984281Notes

Reaction equation

HRID 1984281 reaction equation
F[C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH:11]([CH3:13])[CH3:12])=[C:4]([NH:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=2)[N:3]=1.CCN(C(C)C)C(C)C.[NH2:31][C@H:32]([CH2:38][CH3:39])[CH:33]([OH:37])[CH:34]([CH3:36])[CH3:35]>CCCCO.CS(C)=O>[CH:11]([N:8]1[CH:7]=[N:6][C:5]2[C:9]1=[N:10][C:2]([NH:31][C@H:32]([CH2:38][CH3:39])[CH:33]([OH:37])[CH:34]([CH3:36])[CH3:35])=[N:3][C:4]=2[NH:14][CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=1)([CH3:13])[CH3:12]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 11565460(2-fluoro-9-isopropyl-9H-purin-6-yl)-pyridin-2-ylmethyl-amineHCID 55288816HCID 55288816, compound

Product 1

HCID 10000883HCID 10000883, compound

Reagents, catalysts & solvents 1

HCID 20476217n-BuOH DMSOSolvent

Procedure

To a stirred solution of (2-fluoro-9-isopropyl-9H-purin-6-yl)-pyridin-2-ylmethyl-amine (30 mg, 1 eq, 0.10 mmol) in n-BuOH/DMSO (2.5 mL, 4:1) at room temperature under an argon atmosphere was added DIEA (0.10 mL, 5.5 eq, 0.57 mmol) followed by (3RS,4R)-4-amino-2-methyl-hexan-3-ol (42 mg, 3.0 eq, 0.32 mmol). The reaction mixture was placed in a preheated oil bath at 140° C. and stirred at this temperature for 72 h. The reaction mixture was allowed to cool to room temperature and the solvent was evaporated in vacuo. The residue was partitioned between EtOAc (50 mL) and brine/water (1:1, 100 mL), the aqueous phase was extracted with more EtOAc (2×25 mL), and the combined organic phase was washed with brine (50 mL), dried (MgSo4) and evaporated in vacuo. The residue was purified-by gradient column chromatography on silica gel eluted with CHCl3:MeOH (100:0→98:2), to afford the title compound as a white solid. Yield: 7.8 mg (19%). 50% de 4R,3S: 50% de 4R,3R). 1H-NMR (d-CDCl3, 250 MHz): δ 0.91-1.04 (m, 9H, —NHCH(CH2CH3)CH(CH(CH3)2)OH), 1.57 (d, 6H, J=6.79 Hz, —CH(CH3)2), 1.66-1.94 (m, 4H, —NHCH(CH2CH3)CH(CH(CH3)2)OH), 3.22-3.34 (m, 1H, —NHCH(CH2CH3) CH(CH (CH3)2)OH), 3.79-3.93 (m, 1H, —NHCH(CH2CH3)CH(CH(CH3)2)OH), 4.57-4.71 (m, 1H, —CH(CH3)2), 4.85-4.97 (m, 2H, —HNCH2-Pyr), 5.13-5.24 (m, 1H, —NHCH(CH2CH3)CH(CH(CH3)2)OH), 6.65-6.79 (m, 1H, —HNCH2-Pyr), 7.13-7.24 (m, 1H, Pyr-H), 7.32-7.42 (m, 1H, Pyr-H), 7.56 (s, 1H, —N═CH—N—), 7.58-7.73 (m, 1H, Pyr-H), 8.60 (d, 1H, J=4.42 Hz, Pyr-H). FABMS m/z (relative intensity): 398 ([M+H]+, 100), 324 (50). Accurate Mass (M+H): Actual: 398.2668, Measured: 398.2654.

Workup

  1. customThe reaction mixture was placed in a preheated oil bath at 140° C.
  2. customthe solvent was evaporated in vacuo
  3. customThe residue was partitioned between EtOAc (50 mL) and brine/water (1:1, 100 mL)
  4. extractionthe aqueous phase was extracted with more EtOAc (2×25 mL)
  5. washthe combined organic phase was washed with brine (50 mL)
  6. customdried (MgSo4)
  7. customevaporated in vacuo
  8. washeluted with CHCl3:MeOH (100:0→98:2)

Sources & evidence

ORD record
ord-ed0e08fb09b94f6498f244f79c7b3bb0
Source dataset
uspto-grants-2009_06
Patent number
US07544689B2

Reaction notes

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