Hydrochloric Acid → 4-{4-[(7-Methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-butyl}-[1,4]diazepan-5-one

HRID 2301400Notes

Reaction equation

HRID 2301400 reaction equation
C(OC([N:8]1[CH2:14][CH2:13][C:12](=[O:15])[N:11]([CH2:16][CH2:17][CH2:18][CH2:19][N:20]([CH:24]2[CH2:33][CH2:32][C:31]3[C:26](=[CH:27][C:28]([O:34][CH3:35])=[CH:29][CH:30]=3)[CH2:25]2)[CH2:21][CH2:22][CH3:23])[CH2:10][CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O.Cl>C(Cl)Cl.C(OCC)C>[CH3:35][O:34][C:28]1[CH:27]=[C:26]2[C:31]([CH2:32][CH2:33][CH:24]([N:20]([CH2:21][CH2:22][CH3:23])[CH2:19][CH2:18][CH2:17][CH2:16][N:11]3[C:12](=[O:15])[CH2:13][CH2:14][NH:8][CH2:9][CH2:10]3)[CH2:25]2)=[CH:30][CH:29]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 6422Trifluoroacetic acidHCID 11352263HCID 11352263, compound

Product 1

HCID 102218334-{4-[(7-Methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-butyl}-[1,4]diazepan-5-oneYield 115.2%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolvent2×HCID 6344DichloromethaneSolvent

Procedure

To 4-{4-[(7-methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-butyl}-5-oxo-[1,4]diazepane-1-carboxylic acid tert-butyl ester (800 mg, 1.64 mmol) in methylene chloride (15 mL) was added trifluoroacetic acid (5 mL) in a single portion and the reaction was stirred at room temperature for 30 min. The mixture was concentrated to dryness in-vacuo, dissolved in water (40 mL) and treated with 15% aq. KOH (20 mL). The solution was extracted with ethyl acetate, washed with brine, dried (MgSO4) and concentrated in-vacuo. The free base (636 mg, 1.64 mmol) was taken up in diethyl ether (30 mL) and treated with 1M M HCl in ether (3.3 mL). The solid was collected and dried under vacuum to afford 732 mg of 4-{4-[(7-methoxy-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-butyl}-[1,4]diazepan-5-one 5 as a dihydrochloride salt. MS: 374 ([M+H]+).

Workup

  1. concentrationThe mixture was concentrated to dryness in-vacuo
  2. dissolutiondissolved in water (40 mL)
  3. additiontreated with 15% aq. KOH (20 mL)
  4. extractionThe solution was extracted with ethyl acetate
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in-vacuo
  8. customThe solid was collected
  9. customdried under vacuum

Sources & evidence

ORD record
ord-ab30a2d171854f859d63039f4202c3c0
Source dataset
uspto-grants-2002_12
Patent number
US06500822B2

Reaction notes

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