Diisopropylethylamine → (R)-N-(2-amino-6-(3-(pyrrolidine-1-carbonyl)piperidin-1-yl)pyridin-3-yl)-1-(pyridazin-3-yl)cyclopropanecarboxamide

HRID 931328Notes

Reaction equation

HRID 931328 reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([C:7]2([C:10]([OH:12])=O)[CH2:9][CH2:8]2)[N:2]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C.Cl.Cl.[NH2:48][C:49]1[CH:50]=[CH:51][C:52]([N:56]2[CH2:61][CH2:60][CH2:59][C@@H:58]([C:62]([N:64]3[CH2:68][CH2:67][CH2:66][CH2:65]3)=[O:63])[CH2:57]2)=[N:53][C:54]=1[NH2:55]>ClCCl>[NH2:55][C:54]1[C:49]([NH:48][C:10]([C:7]2([C:3]3[N:2]=[N:1][CH:6]=[CH:5][CH:4]=3)[CH2:8][CH2:9]2)=[O:12])=[CH:50][CH:51]=[C:52]([N:56]2[CH2:61][CH2:60][CH2:59][C@@H:58]([C:62]([N:64]3[CH2:68][CH2:67][CH2:66][CH2:65]3)=[O:63])[CH2:57]2)[N:53]=1

Participants

6

Reactant 4

HCID 81531Diisopropylethylamine2×HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 717777681-(Pyridazin-3-yl)cyclopropane-1-carboxylic acidHCID 89854051(R)-(1-(5,6-Diaminopyridin-2-yl)piperidin-3-yl)(pyrrolidin-1-yl)methanone dihydrochloride

Product 1

HCID 117966502(R)-N-(2-amino-6-(3-(pyrrolidine-1-carbonyl)piperidin-1-yl)pyridin-3-yl)-1-(pyridazin-3-yl)cyclopropanecarboxamideYield 23.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Procedure

To a mixture of 1-(pyridazin-3-yl)cyclopropanecarboxylic acid (160 mg, 0.97 mmol), O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′,-tetramethyluronium hexafluorophosphate (HATU) (445 mg, 1.17 mmol) and diisopropylethyl amine (330 mg, 2.4 mmol) in anhydrous dichloromethane (10 mL) was added (R)-(1-(5,6-diaminopyridin-2-yl)piperidin-3-yl)(pyrrolidin-1-yl)methanone dihydrochloride (350 mg, 0.98 mmol) dissolved in anhydrous dichloromethane (10 mL) with diisopropylethyl amine (330 mg, 2.4 mmol). The reaction mixture was stirred at room temperature for 2 h, diluted with dichloromethane and washed with water. The organics were dried over sodium sulfate and concentrated under reduced pressure. The resulting crude was purified via column chromatography (100-200 silica gel mesh, 60-80% ethyl acetate in petroleum ether) to afford (R)—N-(2-amino-6-(3-(pyrrolidine-1-carbonyl)piperidin-1-yl)pyridin-3-yl)-1-(pyridazin-3-yl)cyclopropanecarboxamide (100 mg, 23%). MS (ES+APCI) (M+H) 436.2; LCMS retention time: 3.390 min (Method W1).

Workup

  1. washwashed with water
  2. dry with materialThe organics were dried over sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe resulting crude was purified via column chromatography (100-200 silica gel mesh, 60-80% ethyl acetate in petroleum ether)

Sources & evidence

ORD record
ord-1bff2fb27f474d3c81b086b7dc4a6885
Source dataset
uspto-grants-2016_03
Patent number
US09296745B2

Reaction notes

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