[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an abietane diterpenoid. It has a role as an anticoronaviral agent."}, {"from": "gpt", "value": "[C][C@H1][C][O][C][=C][Ring1][Branch1][C][=Branch1][C][=O][C][=Branch1][C][=O][C][=C][Ring1][Branch2][C][=C][C][=C][Ring1][=Branch1][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C]"}]