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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508985Generated: October 29, 2026

tert-Butyl (2R)-2-methylpiperazine-1-carboxylate → HCID 90338559, compound

https://huagongshe.com/reaction/1508985

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl (2R)-2-methylpiperazine-1-carboxylateHCID 10262201—
ReactantHCID 118037309HCID 118037309—
ProductHCID 90338559HCID 9033855927.4%

Reaction Steps

Following general procedure B1, ethyl 2-(4-((2-chloro-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)phenyl)acetate (0.094 g, 0.28 mmol) was reacted with (R)-tert-butyl 2-methylpiperazine-1-carboxylate (0.112 g, 0.56 mmol) to afford the title compound (0.038 g, 27%) as an orange foam. MW=494.63. 1H NMR (CDCl3, 500 MHz) δ 7.26 (d, J=8.3 Hz, 2H), 7.13 (d, J=8.3 Hz, 2H), 6.14 (s, 1H), 5.58 (s, 1H), 4.27 (br s, 1H), 4.17 (q, J=7.0 Hz, 2H), 4.04-3.97 (m, 1H), 3.91-3.84 (m, 1H), 3.79-3.73 (m, 1H), 3.60 (s, 2H), 2.88 (t, J=7.5 Hz, 2H), 2.86-2.78 (m, 1H), 2.70 (t, J=7.5 Hz, 2H), 2.11 (quin, J=7.5 Hz, 2H), 1.47 (s, 9H), 1.27 (t, J=7.0 Hz, 3H), 1.20 (d, J=6.6 Hz, 3H); APCI MS m/z 495 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221843B2
Source datasetuspto-grants-2015_12
ORD IDord-ef8bfe34bb974868bbaef130a0f7848c
Source noteuspto-grants-2015_12