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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1747847Generated: October 26, 2026

1-Hydroxybenzotriazole → 7-methyl-N-[4-(1-methylpropyl)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine-9-carboxamide 2,2-dioxide

https://huagongshe.com/reaction/1747847

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantBenzenamine, 4-(1-methylpropyl)-HCID 121771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant7-Methyl-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine-9-carboxylic acid 2,2-dioxideHCID 66748964—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product7-methyl-N-[4-(1-methylpropyl)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine-9-carboxamide 2,2-dioxideHCID 66823771—

Reaction Steps

To a suspension of 7-methyl-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine-9-carboxylic acid 2,2-dioxide (76 mg) in DMF (3 mL) were added 4-sec-butylaniline (0.069 mL), HOBt (67 mg), and EDCI HCl (84 mg) and the mixture was stirred at room temperature overnight. To the reaction mixture was added water (10 ml), and the resulting precipitate was collected by filtration. The obtained solid was recrystallized from DMSO-ethanol to give the title compound (114 mg) as pale-yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09150591B2
Source datasetuspto-grants-2015_10
ORD IDord-1a59cca17f0e4c9bb80f7efcaa8181ae
Source noteuspto-grants-2015_10