Ethylenediamine → HCID 178464936, compound

HRID 246002Notes

Reaction equation

HRID 246002 reaction equation
[OH:1][C@@H:2]1[CH2:5][C@H:4]([CH:6]([NH:8][C:9]([C:11]2[C:19]3[C:14](=[N:15][CH:16]=[C:17]([C:20]4[C:28]5[C:23](=[CH:24][C:25]([F:29])=[CH:26][CH:27]=5)[N:22]([CH3:30])[N:21]=4)[N:18]=3)[N:13](COCC[Si](C)(C)C)[CH:12]=2)=[O:10])[CH3:7])[CH2:3]1.C(O)(C(F)(F)F)=O.C(N)CN>C(Cl)Cl>[OH:1][C@H:2]1[CH2:3][C@H:4]([CH:6]([NH:8][C:9]([C:11]2[C:19]3[C:14](=[N:15][CH:16]=[C:17]([C:20]4[C:28]5[C:23](=[CH:24][C:25]([F:29])=[CH:26][CH:27]=5)[N:22]([CH3:30])[N:21]=4)[N:18]=3)[NH:13][CH:12]=2)=[O:10])[CH3:7])[CH2:5]1

Participants

5

Reactant 3

HCID 3301EthylenediamineHCID 6422Trifluoroacetic acidHCID 178464928HCID 178464928, compound

Product 1

HCID 178464936HCID 178464936, compoundYield 51.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [1-(cis-3-hydroxy-cyclobutyl)-ethyl]-amide (50 mg, 0.09 mmol) in CH2Cl2 (2 mL) was added TFA (1 mL, 13.0 mmol). The bright yellow-orange reaction mixture was stirred at room temperature for 3 h then concentrated. The residue was redissolved in CH2Cl2 (2 mL) and ethylene diamine (0.4 mL, 6.0 mmol) was added. The reaction mixture was stirred at room temperature for 1 h then quenched with water and extracted with 5% MeOH/CH2Cl2 (2×). The combined organics were concentrated and triturated with EtOAc to afford 19 mg (50%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [1-(trans-3-hydroxy-cyclobutyl)-ethyl]-amide as a light yellow solid. MS: (M+H)+=409; 1H NMR (DMSO-d6, 300 MHz): δ (ppm) 9.09 (s, 1H), 8.42 (s, 1H), 8.39 (dd, J=8.7, 5.3 Hz, 1H), 7.94 (d, J=8.7 Hz, 1H), 7.71 (dd, J=9.6, 2.1 Hz, 1H), 7.26 (td, J=9.1, 1.9 Hz, 1H), 4.96 (br. s., 1H), 4.14 (s, 3H), 4.07-4.26 (m, 2H), 2.23-2.41 (m, 1H), 1.98-2.19 (m, 3H), 1.84-1.98 (m, 1H), 1.20 (d, J=6.4 Hz, 3H).

Workup

  1. concentrationthen concentrated
  2. dissolutionThe residue was redissolved in CH2Cl2 (2 mL)
  3. stirringThe reaction mixture was stirred at room temperature for 1 h
  4. customthen quenched with water
  5. extractionextracted with 5% MeOH/CH2Cl2 (2×)
  6. concentrationThe combined organics were concentrated
  7. customtriturated with EtOAc

Sources & evidence

ORD record
ord-b49659668b31489394aa608963dea979
Source dataset
uspto-grants-2014_02
Patent number
US08658646B2

Reaction notes

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