"3-CYCLOPENTYL-4-OXO-10-OXA-3-AZA-TRICYCLO[5.2.1.0(1,5)]DEC-8-ENE-6-CARBOXYLIC ACID"
"3-CYCLOPENTYL-4-OXO-10-OXA-3-AZA-TRICYCLO[5.2.1.0(1,5)]DEC-8-ENE-6-CARBOXYLIC ACID"
"3-CYCLOPENTYL-4-OXO-10-OXA-3-AZA-TRICYCLO[5.2.1.0(1,5)]DEC-8-ENE-6-CARBOXYLIC ACID"