1-Heptanethiol → 4-[1-Phenyl-1-(5-(azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester

HRID 606763Notes

Reaction equation

HRID 606763 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11](=[C:14]([C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[C:15]2[O:16][C:17]([CH:20]3[CH2:23][N:22](C(OCC4C5C=CC=CC=5C5C4=CC=CC=5)=O)[CH2:21]3)=[N:18][N:19]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(S)CCCCCC>C1COCC1.C1CCN2C(=NCCC2)CC1>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][C:11](=[C:14]([C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[C:15]2[O:16][C:17]([CH:20]3[CH2:21][NH:22][CH2:23]3)=[N:18][N:19]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 2

HCID 154221-HeptanethiolHCID 670463744-[1-Phenyl-1-(5-(N-(9-fluorenylmethoxycarbonyl)azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 670464414-[1-Phenyl-1-(5-(azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl esterYield 74.7%

Reagents, catalysts & solvents 2

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneCatalystHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 4-[1-phenyl-1-(5-(N-(9-fluorenylmethoxycarbonyl)azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester (0.161 g, 0.260 mmol) and heptanethiol (0.398 mL, 2.60 mmol) in THF (2.6 mL) at rt was added DBU (2 drops). The mixture was allowed to stir for 18 h and then the solvent was removed in vacuo. The residue was dissolved in MeOH and purified by preparative HPLC(NH4OAc) to afford the title compound (0.077 g, 74%) as a colorless solid:

Workup

  1. customthe solvent was removed in vacuo
  2. dissolutionThe residue was dissolved in MeOH
  3. custompurified by preparative HPLC(NH4OAc)

Sources & evidence

ORD record
ord-f07e2eb3b3584e88a06d480a4bf456e3
Source dataset
uspto-grants-2011_03
Patent number
US07915283B2

Reaction notes

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