HCID 11088367, compound → HCID 19974099, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 9-methoxy-thiazolo[3,2-b]isoquinolinium perchlorate (7 g, 22.19 mmol) in 100 ml of 48% HBr was heated for 18 hours at 115° C. The mixture was concentrated in vacuo, the residue was dissolved in warm water and filtered. The filtrate was treated with sodium perchlorate, the resulting solid was filtered, and washed with water to afford 1.0 g (15%) of 9-hydroxy-thiazolo[3,2-b]isoquinolinium perchlorate (Formula II: A=thiazolo; R1 =H; R6 =9-OH; X- =ClO4-).

Provenance & Evidence