HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 601375Generated: October 29, 2026
Methanesulfonyl chloride → HCID 135441196, compound
https://huagongshe.com/reaction/601375
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | 3-(7-Amino-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-1-(3-methylbutyl)-1,8-naphthyridin-2(1H)-one | HCID 135430710 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 135441196 | HCID 135441196 | 35% |
Reaction Steps
To the product of Example 205 (0.020 g, 0.047 mmol) in pyridine (0.2 mL) was added methanesulfonyl chloride (0.0064 g, 0.0043 mL, 0.056 mmol). The reaction mixture was heated in a microwave reactor at 100° C. for 38 minutes. The reaction was diluted with ethyl acetate (40 mL), washed with 1 N hydrochloric acid, water, and brine. The organic layer was dried over magnesium sulfate and filtered. The filtrate was concentrated under reduced pressure to give a yellow solid, which was purified by chromatography on silica gel eluting with 99:1 dichloromethane:methanol to give the title compound (8.3 mg, 35%). 1H NMR (300 MHz, DMSO-d6) δ 0.98 (d, J=6.62 Hz, 6 H) 1.57 (m, 2 H) 1.70 (m, 1 H) 3.10 (s, 3 H) 4.49 (m, 2 H) 7.50 (dd, J=7.91, 4.60 Hz, 1 H) 7.58 (dd, J=8.82, 2.57 Hz, 1 H) 7.64 (d, J=2.21 Hz, 1 H) 7.75 (d, J=8.82 Hz, 1 H) 8.56 (dd, J=8.09, 1.84 Hz, 1 H) 8.89 (dd, J=4.60, 1.65 Hz, 1 H) 10.29 (s, 1 H) 14.17 (s, 1 H). MS (ESI−) m/z 504 (M−H)−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07902203B2 |
|---|
| Source dataset | uspto-grants-2011_03 |
|---|
| ORD ID | ord-5bc17caad06f44f390a97d33665bf543 |
|---|
| Source note | uspto-grants-2011_03 |
|---|