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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 718919Generated: October 27, 2026

Piperidine → (S)-2-amino-3-(4-tert-butoxyphenyl)-N-((5-chlorothieno[3,2-b]pyridin-3-yl)methyl)-N-((S)-1,1-diethoxypropan-2-yl)propanamide

https://huagongshe.com/reaction/718919

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant(9H-fluoren-9-yl)methyl (S)-3-(4-tert-butoxyphenyl)-1-(((5-chlorothieno[3,2-b]pyridin-3-yl)methyl)((S)-1,1-diethoxypropan-2-yl)amino)-1-oxopropan-2-ylcarbamateHCID 86698529—
Product(S)-2-amino-3-(4-tert-butoxyphenyl)-N-((5-chlorothieno[3,2-b]pyridin-3-yl)methyl)-N-((S)-1,1-diethoxypropan-2-yl)propanamideHCID 86652573119%

Reaction Steps

According to the procedure described in the synthesis method of Compound IV-1, (9H-fluoren-9-yl)methyl (S)-3-(4-tert-butoxyphenyl)-1-(((5-chlorothieno[3,2-b]pyridin-3-yl)methyl)((S)-1,1-diethoxypropan-2-yl)amino)-1-oxopropan-2-ylcarbamate (Compound III-7) 512 mg (0.66 mmol) was treated with piperidine and purified on silica gel column chromatography (n-hexane:ethyl acetate=9:1, chloroform:methanol=100:0 and 8:2) to obtain the title compound 429 mg (119%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193734B2
Source datasetuspto-grants-2015_11
ORD IDord-e1a127bd52bb4cc99cfcd22f0aef05b0
Source noteuspto-grants-2015_11