tert-Butyl ((1R,3S)-3-isopropyl-3-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]-cyclopentyl}carbamate → (1R,3S)-3-Isopropyl-3-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]cyclopentanamine

HRID 1436769Notes

Reaction equation

HRID 1436769 reaction equation
[CH:1]([C@:4]1([C:17]([N:19]2[CH2:24][CH:23]=[C:22]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[CH2:21][CH2:20]2)=[O:18])[CH2:8][CH2:7][C@@H:6]([NH:9]C(=O)OC(C)(C)C)[CH2:5]1)([CH3:3])[CH3:2]>Cl.CCOCC>[CH:1]([C@:4]1([C:17]([N:19]2[CH2:20][CH:21]=[C:22]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[CH2:23][CH2:24]2)=[O:18])[CH2:8][CH2:7][C@@H:6]([NH2:9])[CH2:5]1)([CH3:3])[CH3:2]

Participants

4

Reactant 1

HCID 59833562tert-Butyl ((1R,3S)-3-isopropyl-3-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]-cyclopentyl}carbamate

Product 1

HCID 57938744(1R,3S)-3-Isopropyl-3-[(4-phenyl-3,6-dihydropyridin-1(2H)-yl)carbonyl]cyclopentanamineYield 97.2%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 3283Diethyl EtherSolvent

Procedure

tert-Butyl {(1 R,3S)-3-isopropyl-3-[(4-phenyl-3,6-dihydropyridin- 1(2H)-yl)carbonyl]-cyclopentyl}carbamate (0.23 g, 0.56 mmol) was dissolved in a 1.0 M solution of HCl in ether (4 mL). After being stirred at room temperature for 2 h, the solution was concentrated to give a colorless oil (170 mg). MS calculated for C20H28N2O: (M+H) 313; found 313.2.

Workup

  1. concentrationthe solution was concentrated

Sources & evidence

ORD record
ord-8a13b9a955164bafb7f999bddb35d128
Source dataset
uspto-grants-2009_11
Patent number
US07618970B2

Reaction notes

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