carbon-oxygen lyase activity, acting on phosphates syn-pimara-7,15-diene synthase activity https://github.com/geneontology/go-ontology/issues/30193 RHEA:25560 Catalysis of the reaction: 9-alpha-copalyl diphosphate = 9-beta-pimara-7,15-diene + diphosphate. MetaCyc:RXN-4883 GO:0034279 KEGG_REACTION:R09117 9alpha-copalyl-diphosphate diphosphate-lyase (9beta-pimara-7,15-diene-forming) activity EC:4.2.3.35 molecular_function