Robuta

https://chem.ubc.ca/11-oxa-510-dicyano-69-dimethyltetracyclo6210170510undec-2-en-4-one 11-OXA-5,10-DICYANO-6,9-DIMETHYLTETRACYCLO[6.2.1.01,7.05,10]UNDEC-2-EN-4 -ONE | UBC Chemistry