Acetic Acid → HCID 89420843, compound

HRID 1499877Notes

Reaction equation

HRID 1499877 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[CH:21]=[C:20]([Cl:22])[C:17]([C:18]#[N:19])=[C:16]([CH:23]4[CH2:26][NH:25][CH2:24]4)[C:15]=3[O:27][CH3:28])[CH3:13])[N:9]=[C:10]([CH3:11])[C:3]=12.C([BH3-])#N.[Na+].[CH3:33][C:34]([CH2:36][OH:37])=O.C(O)(=O)C>CO>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[CH:21]=[C:20]([Cl:22])[C:17]([C:18]#[N:19])=[C:16]([CH:23]4[CH2:24][N:25]([CH:34]([CH3:33])[CH2:36][OH:37])[CH2:26]4)[C:15]=3[O:27][CH3:28])[CH3:13])[N:9]=[C:10]([CH3:11])[C:3]=12

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 8299HydroxyacetoneHCID 5003444Sodium cyanoborohydrideHCID 86677799HCID 86677799, compound

Product 1

HCID 89420843HCID 89420843, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

A solution of 4-[1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-2-azetidin-3-yl-6-chloro-3-methoxybenzonitrile (40 mg, 0.10 mmol) in methanol (2 mL) was treated with sodium cyanoborohydride (16 mg, 0.25 mmol) followed by acetol (28 μL, 0.40 mmol) and stirred at room temperature for 1 h. The reaction mixture was quenched with acetic acid (100 μL, 1.8 mmol), diluted with methanol, and purified by preparative LCMS (XBridge C18 column, eluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min) to give the desired products as a mixture of diastereoisomers. This mixture of diastereoisomers was separated by chiral HPLC (RT=3.70 min and 6.58 min; Phenomenex Lux Cellulose C-4 column, 21.2×250 mm, 5 micron particle size, eluting with 20% ethanol in hexanes at 18 ml/min, 5 mg/inj) to give the desired peak 1 isomer (compound 272) (19 mg, 41%) and peak 2 isomer (compound 273) (23 mg, 50%) Peak 1: 1H NMR (300 MHz, DMSO-d5) δ 8.11 (s, 1H), 7.47 (s, 1H), 7.34 (br s, 2H), 6.24 (q, J=6.9 Hz, 1H), 4.43 (t, J=5.2 Hz, 1H), 4.07-3.82 (m, 3H), 3.64 (s, 3H), 3.31-3.24 (m, 1H), 3.17-3.06 (m, 2H), 3.06-2.97 (m, 1H), 2.55 (s, 3H), 2.21-2.11 (m, 1H), 1.72 (d, J=7.1 Hz, 3H), 0.81 (d, J=6.3 Hz, 3H). LCMS for C22H27ClN7O2 (M+H)+: m/z=456.2; Found: 456.2. Peak 2: 1H NMR (300 MHz, DMSO-d6) δ 8.11 (s, 1H), 7.47 (s, 1H), 7.35 (br s, 2H), 6.24 (q, J=7.0 Hz, 1H), 4.43 (t, J=5.5 Hz, 1H), 4.06-3.91 (m, 2H), 3.89-3.79 (m, 1H), 3.64 (s, 3H), 3.30-3.24 (m, 1H), 3.15-3.00 (m, 3H), 2.55 (s, 3H), 2.21-2.10 (m, 1H), 1.72 (d, J=7.1 Hz, 3H), 0.82 (d, J=6.2 Hz, 3H). LCMS for C22H27ClN7O2 (M+H)+: m/z=456.2; Found: 456.2.

Workup

  1. custompurified by preparative LCMS (XBridge C18 column
  2. washeluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 60 mL/min)

Sources & evidence

ORD record
ord-839ba0b1b55e42fa82d756d1947e7f8f
Source dataset
uspto-grants-2015_12
Patent number
US09199982B2

Reaction notes

Loading…