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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1510409Generated: October 26, 2026

(S)-3-(3,4-difluorophenyl)-N-(3,3-dimethyl-1-(methyl-amino)-1-oxobutan-2-yl)-6,7-dihydropyrano[4,3-c]pyrazole-1(4H)-carboxamide → (S)-N-(1-(2-hydroxyethylamino)-3,3-dimethyl-1-oxobutan-2-yl)-3-(3,4-difluorophenyl)-6,7-dihydropyrano[4,3-c]pyrazole-1(4H)-carboxamide

https://huagongshe.com/reaction/1510409

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(S)-3-(3,4-difluorophenyl)-N-(3,3-dimethyl-1-(methyl-amino)-1-oxobutan-2-yl)-6,7-dihydropyrano[4,3-c]pyrazole-1(4H)-carboxamideHCID 46834697—
Reactant(S)-2-amino-N-(2-hydroxyethyl)-3,3-dimethylbutanamideHCID 58124726—
Product(S)-N-(1-(2-hydroxyethylamino)-3,3-dimethyl-1-oxobutan-2-yl)-3-(3,4-difluorophenyl)-6,7-dihydropyrano[4,3-c]pyrazole-1(4H)-carboxamideHCID 46220523—

Reaction Steps

Compound 36 was prepared according to the procedure described for the synthesis of compound 28 by replacing tert-leucine methylamide with intermediate 23. 1H NMR (CDCl3) δ 7.89 (d, J=9.1 Hz, 1H), 7.46-7.51 (m, 1H), 7.21-7.30 (m, 2H), 4.82 (s, 2H), 4.20 (d, J=9.0 Hz, 1H), 3.94 (t, J=5.5 Hz, 2H), 3.74 (br, 2H), 3.44-3.49 (m, 2H), 3.17 (br, 2H), 1.11 (s, 9H). LCMS (+ESI) m/z=437 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08211926B2
Source datasetuspto-grants-2012_07
ORD IDord-421cbf545048425d883d132f4a14357f
Source noteuspto-grants-2012_07