HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1623944Generated: October 30, 2026
HCID 68182594, compound → HCID 68182549, compound
https://huagongshe.com/reaction/1623944
Participants
| Role | Name | HCID | Charge |
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| Reactant | HCID 68182594 | HCID 68182594 | — |
| Solvent | Trifluoroacetic acid methylene chloride | HCID 21863450 | — |
| Product | HCID 68182549 | HCID 68182549 | 84.5% |
Reaction Steps
4-{[(1aR,5aR)-2-(2,4-Difluoro-phenyl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-piperidine-1-carboxylic acid tert-butyl ester (100 mg, 0.218 mmol) was dissolved in 20% TFA/DCM (3 mL). The reaction mixture was stirred at room temperature for 1 h. The solvent was evaporated, and the residue was purified by cation exchange resin to give the title compound (66 mg). LCMS m/z=359.4 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 0.48 (td, J=4.2 and 3.6 Hz, 1H), 1.10-1.17 (m, 1H), 1.49-1.55 (m, 2H), 1.97-2.05 (m, 2H), 2.06-2.12 (m, 1H), 2.22-2.29 (m, 1H), 2.78 (t, J=11.1 Hz, 2H), 2.95 (d, J=16.5 Hz, 1H), 3.03 (dd, J=16.4 and 6.2 Hz, 1H), 3.11-3.19 (d, J=11.9 Hz, 2H), 3.97-4.05 (m, 1H), 6.85 (d, J=8.1 Hz, 1H), 6.98-6.74 (m, 2H), 7.61-7.67 (m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08778950B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-bc7ece6f44b8416f93527668071fce07 |
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| Source note | uspto-grants-2014_07 |
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