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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 242462Generated: October 25, 2026

L-Isoleucinamide → N-((2S,3S)-1-amino-3-methyl-1-oxopentan-2-yl)-3-(3,4-difluorophenyl)-5-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamide

https://huagongshe.com/reaction/242462

Reaction equation

Participants

RoleNameHCIDCharge
ReactantL-IsoleucinamideHCID 854028—
Reactant(S)-N-(3,3-dimethyl-1-(methylamino)-1-oxobutan-2-yl)-5-methyl-3-(2,4,5-trifluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamideHCID 46863441—
Reactanttert-butyl 3-(3,4-difluorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylateHCID 59345327—
ProductN-((2S,3S)-1-amino-3-methyl-1-oxopentan-2-yl)-3-(3,4-difluorophenyl)-5-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-1-carboxamideHCID 59345288—

Reaction Steps

Compound 50 was prepared according to the procedure described for the synthesis of compound 37 by replacing intermediate 19 with intermediate 15, and replacing tert-leucine methylamide with L-isoleucine amide. 1H NMR (CDCl3) δ 7.67 (d, J=8.8 Hz, 1H), 7.49-7.55 (m, 1H), 7.37-7.41 (m, 1H), 7.19-7.24 (m, 1H), 5.95 (s, 1H), 5.63 (s, 1H), 4.30-4.33 (m, 1H), 3.59 (s, 2H), 3.20 (s, 2H), 2.75-2.78 (m, 2H), 2.54 (s, 3H), 2.07-2.10 (m, 1H), 1.60-1.67 (m, 1H), 1.22-1.30 (m, 1H), 1.03 (d, J=6.8 Hz, 3H), 0.98 (t, J=7.4 Hz, 3H). LCMS (+ESI) m/z=406.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653127B2
Source datasetuspto-grants-2014_02
ORD IDord-4b7a8800b5fa454692fb194040826721
Source noteuspto-grants-2014_02