HCID 19100941, compound → 5-Chloro-2-methyl-2,7-diazabicyclo[3.3.0]octane

9.3 g (40 mmol) of ethyl 5-chloro-2-methyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate are heated under reflux overnight with 50 ml of concentrated hydrochloric acid. The mixture is concentrated, the residue is taken up in 30 ml of water, and the mixture is rendered alkaline with potassium carbonate and extracted five times with 50 ml of chloroform each time. The extracts are dried over potassium carbonate and concentrated, and the residue is distilled.

1. concentrationThe mixture is concentrated
2. extractionextracted five times with 50 ml of chloroform each time
3. dry with materialThe extracts are dried over potassium carbonate
4. concentrationconcentrated
5. distillationthe residue is distilled

ORD record

ord-7204d2d0ed9a4c97b6589d03e2dd5911

Source dataset

uspto-grants-1991_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05071999