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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542032Generated: October 31, 2026

tert-Butyl 3-ethynylphenylcarbamate → tert-Butyl {3-[(5-nitro-2-oxo-3-{[2-(trimethylsilyl)ethoxy]methyl}-2,3-dihydro-1,3-benzoxazol-7-yl)ethynyl]phenyl}carbamate

https://huagongshe.com/reaction/542032

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 3-ethynylphenylcarbamateHCID 11275982—
Reactant7-Iodo-5-nitro-3-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-benzoxazol-2(3H)-oneHCID 57961920—
Producttert-Butyl {3-[(5-nitro-2-oxo-3-{[2-(trimethylsilyl)ethoxy]methyl}-2,3-dihydro-1,3-benzoxazol-7-yl)ethynyl]phenyl}carbamateHCID 57961998—

Reaction Steps

The desired compound was prepared according to the procedure of Example B5, step C, using 7-iodo-5-nitro-3-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-benzoxazol-2(3H)-on and tert-butyl (3-ethynylphenyl)carbamate as the starting materials in quantitative yield. LCMS for C26H31N3O7SiNa (M+Na)+: m/z=548.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871753B2
Source datasetuspto-grants-2014_10
ORD IDord-71bf2031817c498ab61dce68f57a2b82
Source noteuspto-grants-2014_10