Morpholine → HCID 59240601, compound

HRID 42212Notes

Reaction equation

HRID 42212 reaction equation
[CH2:1]([C:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11]([N:18]2[CH2:23][CH2:22][N:21]([C:24]3[N:29]=[CH:28][C:27]([CH:30]=O)=[CH:26][CH:25]=3)[CH2:20][CH2:19]2)=[N:10][N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].[NH:46]1[CH2:51][CH2:50][O:49][CH2:48][CH2:47]1.C([O-])(O)=O.[Na+]>C(Cl)Cl.C(O)(=O)C>[CH2:1]([C:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11]([N:18]2[CH2:23][CH2:22][N:21]([C:24]3[CH:25]=[CH:26][C:27]([CH2:30][N:46]4[CH2:51][CH2:50][O:49][CH2:48][CH2:47]4)=[CH:28][N:29]=3)[CH2:20][CH2:19]2)=[N:10][N:9]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 8083MorpholineHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 574716176-[4-(4-Benzyl-phthalazin-1-yl)-piperazin-1-yl]-pyridine-3-carbaldehyde

Product 1

HCID 59240601HCID 59240601, compoundYield 80%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-[4-(4-benzyl-phthalazin-1-yl)-piperazin-1-yl]-pyridine-3-carbaldehyde (40 mg, 0.1 mmol) in 5 mL DCM is added a drop of acetic acid, NaBH(OAc)3 (41.4 mg, 0.2 mmol) and morpholine (7.5 mL, 0.12 mmol). The reaction mixture is stirred for 30 min at rt. Aqueous NaHCO3 solution is added and the reaction mixture is stirred for an additional 30 min. The layers are separated and the aqueous layer is extracted with DCM. The combined organic layers are washed with water, brine, dried over Na2SO4, filtered and concentrated. The crude product is purified by flash chromatography on silica gel (EtOAc/heptane 10%-70%) to yield the title compound (37.8 mg, 80%).

Workup

  1. stirringthe reaction mixture is stirred for an additional 30 min
  2. customThe layers are separated
  3. extractionthe aqueous layer is extracted with DCM
  4. washThe combined organic layers are washed with water, brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product is purified by flash chromatography on silica gel (EtOAc/heptane 10%-70%)

Sources & evidence

ORD record
ord-a26ad2e753bb4026a132d7e22ae2c2a0
Source dataset
uspto-grants-2013_09
Patent number
US08536168B2

Reaction notes

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