HuagongsheHuagongshe Chemistry Print Report · For research reference only
3-Methoxy-2-naphthoic acid → 5-(3,4-Dimethoxyphenyl)-2-{1-[(3-methoxynaphthalen-2-yl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3-Methoxy-2-naphthoic acid | HCID 70161 | — |
| Reactant | 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride | HCID 66616406 | — |
| Product | 5-(3,4-Dimethoxyphenyl)-2-{1-[(3-methoxynaphthalen-2-yl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one | HCID 67364407 | — |
Reaction Steps
The title compound is prepared analogously as described for GP2-WU2 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and 3-methoxynaphthalene-2-carboxylic acid as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM) and by crystallization from diethyl ether to yield the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08609848B2 |
| Source dataset | uspto-grants-2013_12 |
| ORD ID | ord-635d70a3f69742c68a6d68598ca6a29f |
| Source note | uspto-grants-2013_12 |