Acetic Acid → HCID 71262237, compound

HRID 540177Notes

Reaction equation

HRID 540177 reaction equation
[O:1]=[S:2]1(=[O:30])[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[CH2:6][N:5]([C:13]2[CH:22]=[C:21]([NH:23][CH:24]3[CH2:28][CH2:27][NH:26][CH2:25]3)[C:20]3[C:15](=[CH:16][CH:17]=[C:18]([CH3:29])[CH:19]=3)[N:14]=2)[CH2:4][CH2:3]1.[O:31]1[CH2:34][C:33](=O)[CH2:32]1.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>O1CCCC1>[O:30]=[S:2]1(=[O:1])[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[CH2:6][N:5]([C:13]2[CH:22]=[C:21]([NH:23][CH:24]3[CH2:28][CH2:27][N:26]([CH:33]4[CH2:34][O:31][CH2:32]4)[CH2:25]3)[C:20]3[C:15](=[CH:16][CH:17]=[C:18]([CH3:29])[CH:19]=3)[N:14]=2)[CH2:4][CH2:3]1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5049666Sodium triacetoxyborohydrideHCID 150242543-OxetanoneHCID 71255353HCID 71255353, compound

Product 1

HCID 71262237HCID 71262237, compoundYield 41.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
55 °C

Procedure

To a solution of [2-(1,1-dioxido-2,3-dihydro-1,4-benzothiazepin-4(5H)-yl)-6-methyl-N-(pyrrolidin-3-yl)quinolin-4-amine (21 mg, 0.05 mmol, prepared in analogy to Example 21-4) and oxetan-3-one (7.2 mg, 0.10 mmol) in tetrahydrofuran (2 mL) was added acetic acid (8.6 μL, 0.15 mmol). After the mixture being stirred at 55° C. for 1 hour, sodium triacetoxyborohydride (21 mg, 0.10 mmol) was added to the mixture. After being stirred for 2 hours at 65° C., the reaction mixture was concentrated in vacuo. The residue was portioned between ethyl acetate and a saturated aqueous solution of sodium carbonate. The separated organic layer was washed with water, dried over sodium sulfate, and concentrated in vacuo. The residue was purified by preparative HPLC to afford 10 mg of the product as a white solid. MS obsd. (ESI+) [(M+H)+] 479, 1H NMR (400 MHz, CD3OD) δ ppm 8.30 (d, J=1.9 Hz, 1 H), 7.84 (d, J=1.8 Hz, 1 H), 7.78 (s, 1 H), 7.68-7.64 (t, J=3.7 Hz, 1 H), 7.53-7.49 (t, J=3.7 Hz, 2 H), 7.39 (d, J=1.7 Hz, 1 H), 5.98 (s, 1 H), 5.20 (s, 2 H), 4.83-4.78 (m, J=4.7 Hz, 2 H), 4.69-4.60 (m, J=8.4 Hz, 2 H), 4.55 (brs, 2 H), 4.37 (s, 1 H), 3.80-3.74 (m, J=4.1 Hz, 1 H), 3.65-3.61 (m, J=4.2 Hz, 2 H), 2.96-2.89 (m, J=6.6 Hz, 2 H), 2.75-2.72 (m, J=3.3 Hz, 1 H), 2.63-2.47 (m, J=15.9 Hz, 2 H), 2.45 (s, 3 H), 1.95 (m, 1 H).

Workup

  1. stirringAfter being stirred for 2 hours at 65° C.
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. washThe separated organic layer was washed with water
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-626cd33b4d154ca9a6e5e6c19c9b5c29
Source dataset
uspto-grants-2014_10
Patent number
US08871756B2

Reaction notes

Loading…