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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 601383Generated: October 30, 2026

Phenylmethanesulfonyl chloride → HCID 136358506, compound

https://huagongshe.com/reaction/601383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylmethanesulfonyl chlorideHCID 74740—
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 136358506HCID 13635850624.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

A solution of the product of Example 205 (21.5 g, 0.05 mmol) in pyridine (1 mL) was treated with α-toluenesulfonyl chloride (38 mg, 0.2 mmol), heated in a microwave reactor at 120° C. for 120 minutes, cooled to 25C and concentrated under reduced pressure. The residue was triturated with water (1 ml), filtered, and washed with hexane:ethyl acetate (1:1). The crude product was chromatographed on silica gel, eluting with dichloromethane:methanol (399:1) to give the title compound (7 mg, 24%). 1H NMR (300 MHz, DMSO-d6) δ 0.99 (d, J=6.62 Hz, 6 H) 1.58 (m, 2 H) 1.69 (m, 1 H) 4.49 (m, 2 H) 4.59 (s, 2 H) 7.32 (m, 5 H) 7.51 (m, 2 H) 7.57 (d, J=2.21 Hz, 1 H) 7.71 (d, J=8.82 Hz, 1 H) 8.57 (dd, J=8.09, 1.84 Hz, 1 H) 8.90 (dd, J=4.78, 1.84 Hz, 1 H) 10.38 (s, 1 H) 14.08 (s, 1 H) 15.14 (s, 1 H) (ESI−) m/z 580 (M−H)−

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902203B2
Source datasetuspto-grants-2011_03
ORD IDord-0484912ff0d84d54893e908d46ffc52d
Source noteuspto-grants-2011_03