Hydrochloric Acid → 4-[2-(4-Chlorophenyl)-6-(hexahydropyrrolo[3,4-c]pyrrol-2-yl)imidazo[1,2-b]pyridazin-3-yl]pyrid-2-ylamine

HRID 1803897Notes

Reaction equation

HRID 1803897 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([C:8]2[N:12]3[N:13]=[C:14]([N:17]4[CH2:21][CH:20]5[CH2:22][N:23](C(OCCCC)=O)[CH2:24][CH:19]5[CH2:18]4)[CH:15]=[CH:16][C:11]3=[N:10][C:9]=2[C:32]2[CH:37]=[CH:36][C:35]([Cl:38])=[CH:34][CH:33]=2)[CH:5]=[CH:4][N:3]=1.Cl>ClCCl>[Cl:38][C:35]1[CH:36]=[CH:37][C:32]([C:9]2[N:10]=[C:11]3[CH:16]=[CH:15][C:14]([N:17]4[CH2:21][CH:20]5[CH:19]([CH2:24][NH:23][CH2:22]5)[CH2:18]4)=[N:13][N:12]3[C:8]=2[C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH2:1])[CH:7]=2)=[CH:33][CH:34]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 86643352Butyl 5-[3-(2-aminopyrid-4-yl)-2-(4-chlorophenyl)-imidazo[1,2-b]pyridazin-6-yl]hexahydropyrrolo[3,4-c]pyrrole-2-carboxylate

Product 1

HCID 594069484-[2-(4-Chlorophenyl)-6-(hexahydropyrrolo[3,4-c]pyrrol-2-yl)imidazo[1,2-b]pyridazin-3-yl]pyrid-2-ylamine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 0.16 g (0.29 mmol) of tent-butyl 5-[3-(2-aminopyrid-4-yl)-2-(4-chlorophenyl)-imidazo[1,2-b]pyridazin-6-yl]hexahydropyrrolo[3,4-c]pyrrole-2-carboxylate in 3 mL of dichloromethane are added 1.5 mL (18 mmol) of concentrated hydrochloric acid. After stirring for 1 hour at room temperature, the solvent is evaporated off under reduced pressure, the oily residue is taken up with aqueous ammonia and the product is extracted with dichloromethane. The organic phase is filtered on a hydrophobic cartridge and concentrated under reduced pressure. The solid obtained is triturated with diisopropyl ether to give 0.091 g of solid after filtering off and drying under reduced pressure.

Workup

  1. customthe solvent is evaporated off under reduced pressure
  2. extractionthe product is extracted with dichloromethane
  3. filtrationThe organic phase is filtered on a hydrophobic cartridge
  4. concentrationconcentrated under reduced pressure
  5. customThe solid obtained
  6. customis triturated with diisopropyl ether

Sources & evidence

ORD record
ord-5c97f2eab17c4b80ac937622befab148
Source dataset
uspto-grants-2013_01
Patent number
US08354405B2

Reaction notes

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