1-(tert-Butoxycarbonyl)piperidine-4-carboxamide → HCID 71207840, compound

HRID 716709Notes

Reaction equation

Br[CH2:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([S:11][CH3:12])=[CH:7][CH:6]=1)=O.[C:13]([CH:16]1[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]1)(=[O:15])[NH2:14]>CN1C(=O)N(C)CCC1>[CH3:12][S:11][C:8]1[CH:9]=[CH:10][C:5]([C:3]2[N:14]=[C:13]([CH:16]3[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]3)[O:15][CH:2]=2)=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 145 °C

Procedure

2-Bromo-1-[4-(methylsulfanyl)phenyl]ethanone (5 g, 19.15 mmol) and tert-butyl 4-carbamoylpiperidine-1-carboxylate (4.37 g, 19.15 mmol) were dissolved in DMPU (40.8 mL) and heated to 145° C. for 15 min. The resulting solution was then cooled to room temperature, partitioned between aqueous LiCl and ethyl acetate. The combined organics were dried over sodium sulfate and concentrated in vacuo. The resulting crude oil was purified using silica gel chromatography (300 g, using 20-80% ethyl acetate in hexane gradient) to yield 1.8 g of the desired product as a yellow oil. LCMS (M+1)=375.40

Workup

temperatureThe resulting solution was then cooled to room temperature
custompartitioned between aqueous LiCl and ethyl acetate
dry with materialThe combined organics were dried over sodium sulfate
concentrationconcentrated in vacuo
customThe resulting crude oil was purified

Sources & evidence

ORD record: ord-5c00385fa3474bff98ae15ed7735f3ed
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09193697B2

Reaction notes

Loading…