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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 222133Generated: October 27, 2026

8-Amino-2-iodo-1-methyl-4,5-dihydro-1H-1,7,9-triaza-cyclopenta[a]naphthalene-3-carboxylic acid ethyl ester → HCID 68707164, compound

https://huagongshe.com/reaction/222133

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8-Amino-2-iodo-1-methyl-4,5-dihydro-1H-1,7,9-triaza-cyclopenta[a]naphthalene-3-carboxylic acid ethyl esterHCID 68705815—
SolventEthanolHCID 702—
ProductHCID 68707164HCID 6870716495%

Reaction Steps

To a solution of 8-amino-2-iodo-1-methyl-4,5-dihydro-1H-1,7,9-triaza-cyclopenta[a]naphthalene-3-carboxylic acid ethyl ester N1 (1.28 mmol) in 95% EtOH (30 mL) 4M NaOH (1.2 mL) was added. The mixture was heated to reflux for 10 h then cooled and evaporated to dryness. The residue was dissolved in 30 mL of water, acidified with glacial AcOH and the precipitate was filtered and washed with water. The product was dried affording the title compound (95% yield). ESI (+) MS: m/z 371 (MH+). 1H NMR: 2.63 (t, J=7.80, 2H), 2.90 (t, J=7.80, 2H), 4.18 (s, 3H), 6.33 (bs, 2H), 8.00 (s, 1H), 12.26 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08207180B2
Source datasetuspto-grants-2012_06
ORD IDord-d25258c3712e4ea9b2dcfa8d4501930c
Source noteuspto-grants-2012_06