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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 868205Generated: October 25, 2026

Hydrochlorothiazide → 2-(2-Bromoethyl)-6-chloro-3,4-dihydro-1,1-dioxo-7-sulfamoyl-1,2,4-benzothiadiazine

https://huagongshe.com/reaction/868205

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochlorothiazideHCID 3639—
Reactant1,2-DibromoethaneHCID 7839—
ReactantCesium carbonateHCID 10796—
ReactantBenzylbromoacetateHCID 21881508—
Product2-(2-Bromoethyl)-6-chloro-3,4-dihydro-1,1-dioxo-7-sulfamoyl-1,2,4-benzothiadiazineHCID 14280971—

Reaction Steps

Treat 6-chloro-3,4-dihydro-1,1-dioxo-7-sulfamoyl-1,2,4-benzothiadiazine with Cs2CO3 and substitute 1,2-dibromoethane for benzylbromoacetate in the procedure of Example 7, step A to obtain 2-(2-bromoethyl)-6-chloro-3,4-dihydro-1,1-dioxo-7-sulfamoyl-1,2,4-benzothiadiazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04778795
Source datasetuspto-grants-1988_10
ORD IDord-6b9669262562417cac6d976e2a44bae5
Source noteuspto-grants-1988_10