HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 967989Generated: October 30, 2026
3-Pentanamine → 4-[Ethyl-(2-hydroxy-ethyl)-amino]-6-methyl-2-(2,4,6-trimethyl-phenoxy)-nicotinic acid methyl ester
https://huagongshe.com/reaction/967989
Participants
| Role | Name | HCID | Charge |
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| Reactant | 3-Pentanamine | HCID 12019 | — |
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | 4-Chloro-2-(2,4,6-trimethyl-phenoxy)-6-methyl-nicotinic acid methyl ester | HCID 24805651 | — |
| Product | 4-[Ethyl-(2-hydroxy-ethyl)-amino]-6-methyl-2-(2,4,6-trimethyl-phenoxy)-nicotinic acid methyl ester | HCID 69587545 | — |
Reaction Steps
A mixture of 4-chloro-6-methyl-2-(2,4,6-trimethyl-phenoxy)-nicotinic acid methyl ester and 1-ethyl-propyl-amine in 1-methyl-2-pyrrolidinone was heated at 130° C. until starting material was consumed. The mixture was quenched with water, brine and extracted with ethyl acetate. The organic layer was dried and concentrated to dryness. The residue was purified through silica gel column chromatography to give the title compound. 1H NMR(CDCl3) d 6.85(s, 2H), 6.40(s, 1H), 3.88(s, 3H), 3.73(t, 2H), 3.43(t, 2H), 3.31(q, 2H), 2.27(s, 3H), 2.22(s, 3H), 2.06(s, 6H), 1.15(t, 3H) ppm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06956047B1 |
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| Source dataset | uspto-grants-2005_10 |
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| ORD ID | ord-f2fd09205608405a98cfdec4ff18b02e |
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| Source note | uspto-grants-2005_10 |
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