HCID 13533634, compound → HCID 13533635, compound

Participants

Reaction Steps

A solution of 0.2 g (0.448 mmole) of the end product of Example 9 in 20 ml of methanol and 10 ml of 3N hydrochloric acid was refluxed for 20 mins and the solvent was evaporated. The residue was partitioned between 50 ml of dichloromethane and 30 ml of dilute ammonium hydroxide, and the organic layer was dried, concentrated and filtered through 15 g of Florisil. The column was eluted with 200 ml of ether which was concentrated, filtered and recrystallized from dichloromethane/ether/petrol to give white prisms, mp 153°-157° C.

Provenance & Evidence