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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 36853Generated: October 26, 2026

3-Methyluracil → 1,5-Dihydro-3,8-dimethyl-2H-pyrimido[4,5-b][1,4]benzothiazine-2,4(3H)-dione

https://huagongshe.com/reaction/36853

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-MethyluracilHCID 79066—
Reactant2-Amino-5-methylbenzene-1-thiolHCID 323260—
Product1,5-Dihydro-3,8-dimethyl-2H-pyrimido[4,5-b][1,4]benzothiazine-2,4(3H)-dioneHCID 15222261—

Reaction Steps

Employing the procedure of Example 1, parts A and B with 3-methylpyrimidine-2,4(1H, 3H)-dione and 2-amino-5-methylbenzenthiol yielded the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05418231
Source datasetuspto-grants-1995_05
ORD IDord-7e0d183350d54e1f96c2ef8c49e385f2
Source noteuspto-grants-1995_05