1,4-Dioxane hydrochloride → 3-{3-[4-(1-Aminocyclobutyl)phenyl]-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-2-yl}aniline tetrahydrochloride

HRID 1047047Notes

Reaction equation

HRID 1047047 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([C:8]2[N:9]=[C:10]3[C:16]4[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=4[NH:14][C:13]4[N:21]=[CH:22][CH:23]=[CH:24][C:12]=4[N:11]3[C:25]=2[C:26]2[CH:31]=[CH:30][C:29]([C:32]3([NH:36]C(=O)OC(C)(C)C)[CH2:35][CH2:34][CH2:33]3)=[CH:28][CH:27]=2)[CH:5]=[CH:6][CH:7]=1.[ClH:44].O1CCOCC1>C(Cl)Cl>[ClH:44].[ClH:44].[ClH:44].[ClH:44].[NH2:36][C:32]1([C:29]2[CH:28]=[CH:27][C:26]([C:25]3[N:11]4[C:12]5[CH:24]=[CH:23][CH:22]=[N:21][C:13]=5[NH:14][C:15]5[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=5[C:10]4=[N:9][C:8]=3[C:4]3[CH:3]=[C:2]([CH:7]=[CH:6][CH:5]=3)[NH2:1])=[CH:31][CH:30]=2)[CH2:33][CH2:34][CH2:35]1

Participants

4

Reactant 2

HCID 204431481,4-Dioxane hydrochlorideHCID 69087660tert-Butyl (1-{4-[2-(3-aminophenyl)-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl]phenyl}cyclobutyl)carbamate

Product 1

HCID 675039013-{3-[4-(1-Aminocyclobutyl)phenyl]-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-2-yl}aniline tetrahydrochlorideYield 83.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl (1-{4-[2-(3-aminophenyl)-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl]phenyl}cyclobutyl)carbamate (40.0 mg, 0.0701 mmol) was dissolved in DCM (1 mL). 4M HCl/dioxane (1 mL) was added to the mixture and stirred at room temperature for 15.5 hours. The mixture was concentrated and solidified with ether. The precipitated solids were collected by filtration and washed with ether to afford desired product (36.2 mg, 83.8%) as pale red solid. 1H-NMR (DMSO-d6) 400 MHz δ: 8.78 (br s, 2H), 8.63 (s, 1H), 8.11 (dd, J=4.8, 1.6 Hz, 1H), 7.96-7.92 (m, 1H), 7.60-7.48 (m, 3H), 7.42-7.09 (m, 8H), 6.93 (dd, J=8.2, 1.4 Hz, 1H), 6.75 (dd, J=7.8, 4.6 Hz, 1H), 2.65-2.48 (m, 4H), 2.27-2.13 (m, 1H), 1.90-1.76 (m, 1H); LCMS: 471 [M+H].

Workup

  1. concentrationThe mixture was concentrated
  2. filtrationThe precipitated solids were collected by filtration
  3. washwashed with ether

Sources & evidence

ORD record
ord-d1c46b0441a647b38c0f1e58d540a4e3
Source dataset
uspto-grants-2013_10
Patent number
US08569331B2

Reaction notes

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