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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 128270Generated: October 25, 2026

2-Amino-5-chlorothiazole → 2H-(1)Benzothieno(2,3-e)-1,2-thiazine-3-carboxamide, N-(5-chloro-2-thiazolyl)-4-hydroxy-2-methyl-, 1,1-dioxide

https://huagongshe.com/reaction/128270

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-5-chlorothiazoleHCID 38942—
Reactant3-carbomethoxy-4-hydroxy-2-methyl-2H-[1]benzothieno[2,3-e]-1,2-thiazine 1,1-dioxideHCID 54707259—
Product2H-(1)Benzothieno(2,3-e)-1,2-thiazine-3-carboxamide, N-(5-chloro-2-thiazolyl)-4-hydroxy-2-methyl-, 1,1-dioxideHCID 5470890034%

Reaction Steps

Prepared analogous to Example 1 from methyl 4-hydroxy-2-methyl-2H-[1] benzothieno [2,3-e]-1,2-thiazine-3-carboxylate-1,1-dioxide and 5-chloro-2-thiazolamine with a yield of 34% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04259336
Source datasetuspto-grants-1981_03
ORD IDord-ab499049805f40eda0b8329d20d8bed8
Source noteuspto-grants-1981_03