Hydrochloric Acid → (E)-N-(2-Isobutoxy-3-methoxybenzyl)-N-methyl-3-(2-oxo-2,3,4,5-tetrahydro-1H-pyrido[2,3-e][1,4]diazepin-7-yl)acrylamide hydrochloride

HRID 2097092Notes

Reaction equation

HRID 2097092 reaction equation
[CH2:1]([O:5][C:6]1[C:30]([O:31][CH3:32])=[CH:29][CH:28]=[CH:27][C:7]=1[CH2:8][N:9]([CH3:26])[C:10](=[O:25])/[CH:11]=[CH:12]/[C:13]1[CH:24]=[N:23][C:16]2[NH:17][C:18](=[O:22])[CH2:19][NH:20][CH2:21][C:15]=2[CH:14]=1)[CH:2]([CH3:4])[CH3:3].[ClH:33]>C(Cl)Cl.C(OCC)C>[ClH:33].[CH2:1]([O:5][C:6]1[C:30]([O:31][CH3:32])=[CH:29][CH:28]=[CH:27][C:7]=1[CH2:8][N:9]([CH3:26])[C:10](=[O:25])/[CH:11]=[CH:12]/[C:13]1[CH:24]=[N:23][C:16]2[NH:17][C:18](=[O:22])[CH2:19][NH:20][CH2:21][C:15]=2[CH:14]=1)[CH:2]([CH3:4])[CH3:3]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 16660146HCID 16660146, compound

Product 1

HCID 16660145(E)-N-(2-Isobutoxy-3-methoxybenzyl)-N-methyl-3-(2-oxo-2,3,4,5-tetrahydro-1H-pyrido[2,3-e][1,4]diazepin-7-yl)acrylamide hydrochlorideYield 45%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolvent

Procedure

A stirring solution of (E)-N-(2-isobutoxy-3-methoxybenzyl)-N-methyl-3-(2-oxo-2,3,4,5-tetrahydro-1H-pyrido[2,3-e][1,4]diazepin-7-yl)acrylamide (0.108 g, 0.246 mmol) in CH2Cl2 (3 mL) under N2 was treated with HCl (0.12 mL of a 2.0 M solution in diethyl ether, 24 mmol). After stirring for 18 h, the resulting solid was collected by filtration and washed with Et2O (100 mL) and dried. The solid was dissolved in CH2Cl2 (2 mL) and layered with hexanes (5 mL). The resulting solids were collected by filtration, washed with Et2O (50 mL) and dried to yield the target compound (0.052 g, 45%) as a tan solid and as a mixture of amide rotamers: 1H NMR (300 MHz, DMSO-d6) δ 11.09-11.07 (m, 1H), 10.03 (br s, 2H), 8.77-8.71 (m, 1H), 8.31-8.24 (m, 1H), 7.62-7.54 (m, 1H), 7.38-7.31 (m, 1H), 7.05-6.59 (m, 2H), 6.68-6.59 (m, 1H), 4.81-4.65 (m, 2H), 4.27-4.23 (m, 2H), 3.85-3.82 (m, 2H), 3.79 (s, 3H), 3.72-3.68 (m, 2H), 3.12-2.88 (m, 3H), 2.06-1.97 (m, 1H), 1.00-0.98 (m, 6H); MS (ESI) m/e 439 (M+H)+.

Workup

  1. filtrationthe resulting solid was collected by filtration
  2. washwashed with Et2O (100 mL)
  3. customdried
  4. dissolutionThe solid was dissolved in CH2Cl2 (2 mL)
  5. filtrationThe resulting solids were collected by filtration
  6. washwashed with Et2O (50 mL)
  7. customdried

Sources & evidence

ORD record
ord-ea2ddb3f2d33429c85891aa9318d00e9
Source dataset
uspto-grants-2013_05
Patent number
US08450307B2

Reaction notes

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