HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzoic acid, 2-(chlorosulfonyl)-, methyl ester → Methyl 2-({4-[3-(3,4-dimethoxyphenyl)-4,4-dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]piperidin-1-yl}sulfonyl)benzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzoic acid, 2-(chlorosulfonyl)-, methyl ester | HCID 117830 | — |
| Reactant | 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride | HCID 66616406 | — |
| Product | Methyl 2-({4-[3-(3,4-dimethoxyphenyl)-4,4-dimethyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]piperidin-1-yl}sulfonyl)benzoate | HCID 46189879 | — |
Reaction Steps
The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B1*HCl) and methyl 2-(chlorosulfonyl)benzoate as starting compounds. The crude product is purified by crystallization from EA and 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-41221dcfee85477fab4e9069e85ecc5a |
| Source note | uspto-grants-2013_12 |