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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84204Generated: October 27, 2026

Diisopropylethylamine → HCID 178472219, compound

https://huagongshe.com/reaction/84204

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant(R)-3-[N-(5'-chloro-2'-fluorobiphenyl-4-ylmethyl)-hydrazino]-2-hydroxy-2-methyl-propionic acid ethyl esterHCID 68180853—
ReactantHCID 178524642HCID 178524642—
SolventDimethylformamideHCID 6228—
ProductHCID 178472219HCID 178472219—

Reaction Steps

3-Hydroxyisoxazole-5-carboxylic acid (132 mg, 1.0 mmol) and HATU (389 mg, 1.0 mmol) were combined in DMF (3.7 mL), and the resulting mixture was stirred for 10 minutes at room temperature. DIPEA (343 μL, 2.0 mmol) and (R)-3-[N-(5′-chloro-2′-fluorobiphenyl-4-ylmethyl)-hydrazino]-2-hydroxy-2-methyl-propionic acid ethyl ester (300 mg, 0.8 mmol) were added and the resulting mixture was stirred for 30 minutes. LC/MS showed desired product. The mixture was the evaporated under reduced pressure to yield the title compound (210 mg, 100% purity). MS m/z [M+H]+ calc'd for C23H23ClFN3O6, 492.13; Found 492.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846913B2
Source datasetuspto-grants-2014_09
ORD IDord-20559b04493d40869ff34498fb3bb43c
Source noteuspto-grants-2014_09