4-(N-Boc-amino)piperidine → HCID 67471944, compound
Reaction equation
Cl[C:2]1[C:3]2[CH:25]=[C:24]([Cl:26])[CH:23]=[CH:22][C:4]=2[N:5]([CH3:21])[C:6](=[O:20])[CH:7]([CH2:9][C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[CH:11]=2)[N:8]=1.[NH:27]1[CH2:32][CH2:31][CH:30]([NH:33][C:34](=[O:40])[O:35][C:36]([CH3:39])([CH3:38])[CH3:37])[CH2:29][CH2:28]1>>[Cl:26][C:24]1[CH:25]=[CH:3][C:4]2[N:5]([CH3:21])[C:6](=[O:20])[CH:7]([CH2:9][C:10]3[CH:11]=[CH:12][C:13]4[C:18](=[CH:17][CH:16]=[CH:15][CH:14]=4)[CH:19]=3)[N:8]=[C:2]([N:27]3[CH2:28][CH2:29][CH:30]([NH:33][C:34](=[O:40])[O:35][C:36]([CH3:38])([CH3:37])[CH3:39])[CH2:31][CH2:32]3)[C:22]=2[CH:23]=1Participants
Procedure
5,7-Dichloro-1-methyl-3-(naphthalen-2-ylmethyl)-1H-benzo[e][1,4]diazepin-2(3H)-one (170 mg, 0.44 mmol) and tert-butyl piperidin-4-ylcarbamate (89 mg, 0.44 mmol) were coupled according to the corresponding procedure described in Example 14 to yield intermediate tert-butyl 1-(7-chloro-1-methyl-3-(naphthalen-2-ylmethyl)-2-oxo-2,3-dihydro-1H-benzo[e][1,4]diazepin-5-yl)piperidin-4-ylcarbamate. (85 mg, 35%). Tert-butyl 1-(7-chloro-1-methyl-3-(naphthalen-2-ylmethyl)-2-oxo-2,3-dihydro-1H-benzo[e][1,4]diazepin-5-yl)piperidin-4-ylcarbamate (85 mg, 0.16 mmol) was dissolved in dichloromethane (1 mL) and trifluoroacetic acid (1 mL) and stirred at ambient temperature for 2 hours. The solution was concentrated, redissolved in ethyl acetate and extracted into 1 M aqueous hydrochloric acid (3×10 mL). The extracts were neutralized with saturated sodium bicarbonate, extracted with dichloromethane (3×25 mL), then dried with sodium sulfate, filtered, and concentrated to yield 5-(4-aminopiperidin-1-yl)-7-chloro-1-methyl-3-(naphthalen-2-ylmethyl)-1H-benzo[e][1,4]diazepin-2(3H)-one (20 mg, 29% yield). MS (M+H)+447.2.
Sources & evidence
- ORD record
- ord-214ff915bb69443589f818c47349affe
- Source dataset
- uspto-grants-2013_12
- Patent number
- US08604023B2
Reaction notes
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