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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 601391Generated: October 30, 2026

(Chloromethyl)sulfonyl chloride → HCID 136358511, compound

https://huagongshe.com/reaction/601391

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(Chloromethyl)sulfonyl chlorideHCID 77054—
Reactant3-(7-Amino-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-1-(3-methylbutyl)-1,8-naphthyridin-2(1H)-oneHCID 135430710—
SolventPyridineHCID 1049—
ProductHCID 136358511HCID 13635851122.2%

Reaction Conditions

Temperature120 °C

Reaction Steps

To the product of Example 205 (21.5 g, 0.05 mmol) in pyridine (1 mL) was added chloromethylsulfonyl chloride (18 mL, 0.2 mmol). The reaction mixture was heated in a microwave reactor at 120° C. for 120 minutes. The reaction was cooled to 25° C. and concentrated under reduced pressure. The residue was triturated with water (1 mL), filtered, and washed with of 1:1 hexane:ethyl acetate. The crude product was purified by chromatography on reverse phase gradient eluting with 0.1% trifluoroacetic acid in water/methanol (90/10) to 0.1% trifluoroacetic in water/methanol (5/95) to give the title compound (6 mg, 22%). 1H NMR (300 MHz, DMSO-d6) δ 0.99 (d, J=6.62 Hz, 6 H) 1.57 (m, 2 H) 1.69 (m, 1 H) 4.49 (t, J=7.74 Hz, 2 H) 5.18 (s, 2 H) 7.51 (dd, J=7.91, 4.60 Hz, 1 H) 7.62 (dd, J=8.82, 2.57 Hz, 1 H) 7.67 (d, J=2.57 Hz, 1 H) 7.77 (d, J=8.82 Hz, 1 H) 8.56 (dd, J=8.09, 1.84 Hz, 1 H) 8.90 (dd, J=4.41, 1.84 Hz, 1 H) 10.91 (s, 1 H) 14.10 (s, 1 H). MS (ESI−) m/z 538 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902203B2
Source datasetuspto-grants-2011_03
ORD IDord-0b476229010741adb8ab5e18dc873588
Source noteuspto-grants-2011_03