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Triethylamine → HCID 57791847, compound

HRID 1091713
Notes
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Reaction equation

HRID 1091713 reaction equation
Cl.[CH:2]([O:5][CH:6]1[CH2:11][CH2:10][NH:9][CH2:8][CH2:7]1)([CH3:4])[CH3:3].C(N(CC)CC)C.[O:19]=[C:20]1[C:29]2[C:24](=[CH:25][CH:26]=[CH:27][CH:28]=2)[C:23]([CH2:30][C:31]2[CH:36]=[CH:35][N:34]=[C:33]([C:37](O)=[O:38])[CH:32]=2)=[N:22][NH:21]1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1>CN(C)C=O>[CH3:3][CH:2]([O:5][CH:6]1[CH2:11][CH2:10][N:9]([C:37]([C:33]2[CH:32]=[C:31]([CH2:30][C:23]3[C:24]4[C:29](=[CH:28][CH:27]=[CH:26][CH:25]=4)[C:20](=[O:19])[NH:21][N:22]=3)[CH:36]=[CH:35][N:34]=2)=[O:38])[CH2:8][CH2:7]1)[CH3:4]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 8471Triethylamine2×HCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 509880984-Isopropoxypiperidine hydrochlorideHCID 59767737HCID 59767737, compound

Product 1

HCID 57791847HCID 57791847, compoundYield 59.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
25 °C

Procedure

A solution of 4-isopropoxypiperidine hydrochloride (192 mg, 1.07 mmol) and triethylamine (0.327 mL, 2.35 mmol) in N,N-dimethylformamide (3 mL) was added in one portion to a stirred solution of 4-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)picolinic acid (5)(300 mg, 1.07 mmol), triethylamine (0.327 mL, 2.35 mmol) and O-benzotriazol-1-yl-N,N,N′,N′-tetra-methyluronium hexafluorophosphate (607 mg, 1.60 mmol) in DMF (3 mL) at 25° C. The resulting solution was stirred at 25° C. for 4 hours. The crude mixture was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 30 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness and lyophilised to afford the desired compound as a solid (257 mg, 59.3%); 1H NMR (400.132 MHz, DMSO) δ 1.08 (6H, dd), 1.28-1.46 (2H, m), 1.65-1.74 (1H, m), 1.78-1.87 (1H, m), 3.12 (1H, ddd), 3.23-3.31 (1H, m), 3.42-3.51 (1H, m), 3.62 (1H, m), 3.69 (1H, quintet), 3.91-4.00 (1H, m), 4.40 (2H, s), 7.39 (1H, dd), 7.49 (1H, d), 7.83-7.97 (3H, m), 8.28 (1H, dd), 8.46-8.49 (1H, m), 12.60 (1H, s); m/z (LC-MS, ESI+), RT=1.54 (M+H 407).

Workup

  1. customThe crude mixture was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 30 mm diameter, 100 mm length)
  2. additionFractions containing the desired compound
  3. customwere evaporated to dryness

Sources & evidence

ORD record
ord-6c25459a0d154ca5a9f3491557fd58b3
Source dataset
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08129380B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes