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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 734328Generated: October 31, 2026

1-Hydroxybenzotriazole → HCID 68818466, compound

https://huagongshe.com/reaction/734328

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acidHCID 392871—
ReactantBenzyl (3S)-3-methylpiperazine-1-carboxylateHCID 7578289—
ReactantN-benzyl-N-ethylethanamine;1,4-bis(ethenyl)benzene;styreneHCID 16212021—
Solvent1,2-DichloroethaneHCID 11—
SolventDichloromethaneHCID 6344—
ProductHCID 68818466HCID 68818466—

Reaction Steps

1-(tert-Butoxycarbonyl)-piperidine4-carboxylic acid (0.53 g), (S)-1-benzyloxycarbonyl-3-methylpiperazine (D19)(0.5 g), HOBt (0.29 g) and diethylaminomethyl polystyrene (1.78 g) were stirred in DCM (30 ml), then EDC (0.53 g) was added and the reaction was stirred at rt ovemight. The mixture was filtered and washed with saturated sodium hydrogen carbonate solution (3×50 ml) and brine (30 ml). The organic layer was dried (MgSO4) and evaporated to give a crude yellow oil which was purified by chromatography [silica gel; 0-100% ethyl acetate/hexane) to give the tide compound (D20) as a clear oil which crystallised on standing (0.88 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07592347B2
Source datasetuspto-grants-2009_09
ORD IDord-a9d13b3a961346c3b33f3099d5c8fce9
Source noteuspto-grants-2009_09