1,4-Dioxane hydrochloride → 1-[4-(2-chloro-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutanamine trihydrochloride

HRID 1046998Notes

Reaction equation

HRID 1046998 reaction equation
[Cl:1][C:2]1[N:3]=[C:4]2[C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=3[NH:8][C:7]3[N:15]=[CH:16][CH:17]=[CH:18][C:6]=3[N:5]2[C:19]=1[C:20]1[CH:25]=[CH:24][C:23]([C:26]2([NH:30]C(=O)OC(C)(C)C)[CH2:29][CH2:28][CH2:27]2)=[CH:22][CH:21]=1.[ClH:38].O1CCOCC1>C(Cl)Cl>[ClH:1].[ClH:38].[ClH:1].[Cl:1][C:2]1[N:3]=[C:4]2[C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=3[NH:8][C:7]3[N:15]=[CH:16][CH:17]=[CH:18][C:6]=3[N:5]2[C:19]=1[C:20]1[CH:21]=[CH:22][C:23]([C:26]2([NH2:30])[CH2:29][CH2:28][CH2:27]2)=[CH:24][CH:25]=1

Participants

4

Reactant 2

HCID 204431481,4-Dioxane hydrochlorideHCID 136331866tert-butyl {1-[4-(2-chloro-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutyl}carbamate

Product 1

HCID 1363910191-[4-(2-chloro-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutanamine trihydrochlorideYield 90.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl {1-[4-(2-chloro-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutyl}carbamate (36.4 mg, 0.0708 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 (33.6 mg, 90.6%) as yellow solid. 1H NMR (DMSO-d6) 400 MHz δ: 8.72 (br s, 2H), 8.68 (s, 1H), 8.16 (dd, J=4.8, 1.8 Hz, 1H), 7.82 (dd, J=7.8, 1.8 Hz, 1H), 7.61-7.55 (m, 2H), 7.42-7.27 (m, 4H), 7.13-7.07 (m, 1H), 6.98 (dd, J=7.8, 1.8 Hz, 1H), 6.81 (dd, J=7.8, 4.8 Hz, 1H), 4.27 (br s, 3H), 2.64-2.43 (m, 4H), 2.26-2.12 (m, 1H), 1.89-1.74 (m, 1H); LCMS: 414 [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-e9601fe5bf40419fa8423448e51fcfd5
Source dataset
uspto-grants-2013_10
Patent number
US08569331B2

Reaction notes

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