Triethylamine → HCID 136121371, compound

HRID 2062303Notes

Reaction equation

HRID 2062303 reaction equation
[O:1]1[CH2:5][CH2:4][CH2:3][C@@H:2]1[C:6]([OH:8])=O.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:33][CH:34]1[CH2:39][CH2:38][N:37]([C:40]2[C:49]3[C:44](=[CH:45][C:46]([CH3:50])=[CH:47][CH:48]=3)[N:43]=[C:42]([C:51]3[CH:56]=[CH:55][CH:54]=[CH:53][C:52]=3[OH:57])[N:41]=2)[CH2:36][CH2:35]1.C(N(CC)CC)C>CN(C=O)C>[OH:57][C:52]1[CH:53]=[CH:54][CH:55]=[CH:56][C:51]=1[C:42]1[N:41]=[C:40]([N:37]2[CH2:36][CH2:35][CH:34]([NH:33][C:6]([C@H:2]3[CH2:3][CH2:4][CH2:5][O:1]3)=[O:8])[CH2:39][CH2:38]2)[C:49]2[C:44](=[CH:45][C:46]([CH3:50])=[CH:47][CH:48]=2)[N:43]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 2734707Tetrahydro-2-furoic acid, (+)-HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 136104957HCID 136104957, compound

Product 1

HCID 136121371HCID 136121371, compoundYield 42.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

(R)-Tetrahydrofuran-2-carboxylic acid (193 mg, 1.66 mmol) was dissolved in DMF (6 mL), followed by the addition of HATU (696 mg, 1.83 mmol). The mixture was then stirred for 15 min at room temperature under an N2 atmosphere. The 2-[4-(4-Amino-piperidin-1-yl)-7-methyl-quinazolin-2-yl]-phenol (556 mg, 1.66 mmol) was dissolved in DMF (8 mL) and added to the mixture, followed by triethylamine (336 mg, 0.463 mL, 3.32 mmol). After 30 min, the DMF was removed in vacuo and the crude product partitioned between water and ethyl acetate. The aqueous layer was separated, washed with ethyl acetate, and the combined organic layers dried over MgSO4, filtered, and concentrated to give crude product as an orange oil. Purification via silica gel chromatography (20% ethyl acetate/80% 1:1 CH2Cl2:hexane) gave pure (R)-Tetrahydro-furan-2-carboxylic acid {1-[2-(2-hydroxy-phenyl)-7-methyl-quinazolin-4-yl]-piperidin-4-yl}-amide (303 mg, 42%). 1H NMR (400 MHz, DMSO-d6) δ 8.44 (dd, J=8.2, 1.5 Hz, 1H), 7.90 (d, J=8.5 Hz, 1H), 7.75 (d, J=8.3 Hz, 1H), 7.67 (s, 1H), 7.40-7.36 (m, 2H), 6.97-6.93 (m, 2H), 4.48-4.45 (m, 2H), 4.20 (dd, J=8.2, 5.3 Hz, 1H), 4.06-3.96 (m, 1H), 3.88 (dd, J=14.3, 6.6 Hz, 1H), 3.74 (dd, J=14.5, 6.7 Hz, 1H), 3.43-3.32 (m, 2H), 2.51 (s, 3H), 2.16-2.07 (m, 1H), 1.89-1.69 (m, 7H). 13C NMR (100 MHz, DMSO-d6) δ 171.7, 162.8, 160.7, 159.5, 149.3, 144.1, 132.5, 129.0, 127.3, 125.7, 125.4, 118.9, 118.4, 117.2, 111.9, 77.6, 68.5, 48.3, 45.5, 31.3, 31.2, 30.0, 24.9, 21.2.

Workup

  1. additionadded to the mixture
  2. waitAfter 30 min
  3. customthe DMF was removed in vacuo
  4. customthe crude product partitioned between water and ethyl acetate
  5. customThe aqueous layer was separated
  6. washwashed with ethyl acetate
  7. dry with materialthe combined organic layers dried over MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customto give crude product as an orange oil
  11. customPurification via silica gel chromatography (20% ethyl acetate/80% 1:1 CH2Cl2:hexane)

Sources & evidence

ORD record
ord-0419b77d000640ada435a36312eb777f
Source dataset
uspto-grants-2012_10
Patent number
US08283354B2

Reaction notes

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