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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 242497Generated: October 25, 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-(2,4,5-trifluorophenyl)-4,5-dihydropyrano[3,4-c]pyrazole-1(7H)-carboxamide

https://huagongshe.com/reaction/242497

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—
Reactant3-(2,4,5-Trifluorophenyl)-1,4,5,7-tetrahydropyrano[3,4-c]pyrazoleHCID 59345342—
Product(S)-N-(1-(2-hydroxyethylamino)-3,3-dimethyl-1-oxobutan-2-yl)-3-(2,4,5-trifluorophenyl)-4,5-dihydropyrano[3,4-c]pyrazole-1(7H)-carboxamideHCID 46830946—

Reaction Steps

Compound 97 was prepared according to the procedure for the synthesis of compound 28 by replacing intermediate 16 with intermediate 16D, and replacing tert-leucine methylamide with intermediate 23. LCMS (+ESI) m/z=453.3 [M+H]+. 1H NMR (CDCl3) δ 7.81 (d, J=9.1 Hz, 1H), 7.51-7.54 (m, 1H), 7.02-7.05 (m, 1H), 6.37 (br, 1H), 5.03 (d, J=8.9 Hz, 2H), 4.14 (d, J=9.2 Hz, 1H), 3.83-3.90 (m, 2H), 3.74 (br, 2H), 3.45 (br, 2H), 3.35 (br, 1H), 2.64 (br, 1H), 1.06 (s, 9H). Purity: 97%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653127B2
Source datasetuspto-grants-2014_02
ORD IDord-4ab939d58a6d4900bc12a92db71fc270
Source noteuspto-grants-2014_02