Diisopropylethylamine → HCID 67211256, compound

HRID 555152Notes

Reaction equation

HRID 555152 reaction equation
[F:1][C:2]1[C:7]2[C:8]([C:18](O)=[O:19])=[C:9]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)[O:10][C:6]=2[CH:5]=[CH:4][C:3]=1[OH:21].C1C=[C:26]2[N:28]=NN(O)C2=CC=1.O.CCN=C=NCCCN(C)C.Cl.C(N(CC)C(C)C)(C)C>>[F:1][C:2]1[C:7]2[C:8]([C:18]([NH:28][CH3:26])=[O:19])=[C:9]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)[O:10][C:6]=2[CH:5]=[CH:4][C:3]=1[OH:21]

Participants

5

Reactant 4

HCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 67211105HCID 67211105, compound

Product 1

HCID 67211256HCID 67211256, compound

Procedure

To a mixture of 4-fluoro-2-(4-fluorophenyl)-5-hydroxybenzofuran-3-carboxylic acid (73 mg, 0.252 mmol), methylamine, HCl (25.5 mg, 0.377 mmol), HOBT hydrate (65.5 mg, 0.428 mmol) and EDC hydrochloride (87 mg, 0.453 mmol) at r.t. under N2 was added N,N-diisopropylethylamine (0.220 mL, 1.258 mmol). The mixture was stirred at r.t. for 16 hours. After concentration, the mixture was added with 5 ml 1N HCl, and then 14 ml H2O. The white solid was filtered and washed with 3×5 ml H2O and dried (64 mg). 1H NMR (500 MHz, CD3OD) δ 7.89 (dd, J=8.09, 5.34, 2H), 7.25 (t overlapping with dd, 2H), 7.23 (dd, 1H), 6.99 (t, J=8.55, 1H), 2.96 (s, 3H). LC/MS were performed by using Shimadzu-VP instrument with UV detection at 220 nm and Waters MICROMASS®. HPLC method: Solvent A=10% MeOH-90% H2O-0.1% TFA, Solvent B=90% MeOH-10% H2O-0.1% TFA, Start % B=0, Final % B=100, Gradient time=2 min, Stop time=3 min, Flow Rate=5 ml/min, Column: PHENOMENEX® Luna, 3.0×50 mm, S10; (ES+) m/z (M+H)+=304.06, HPLC Rt=1.262 min.

Workup

  1. concentrationAfter concentration
  2. additionthe mixture was added with 5 ml 1N HCl
  3. filtrationThe white solid was filtered
  4. washwashed with 3×5 ml H2O
  5. customdried (64 mg)
  6. customB=100, Gradient time=2 min
  7. customtime=3 min, Flow Rate=5 ml/min, Column

Sources & evidence

ORD record
ord-a05ae2402eac415386c4c3952d8d5091
Source dataset
uspto-grants-2011_11
Patent number
US08048887B2

Reaction notes

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