label: 5,7-dihydroxy-4-methylphthalide + (2E,6E)-farnesyl diphosphate = 4-farnesyl-3,5-dihydroxy-6-methylphthalide + diphosphate
label_lc: 5,7-dihydroxy-4-methylphthalide + (2e,6e)-farnesyl diphosphate = 4-farnesyl-3,5-dihydroxy-6-methylphthalide + diphosphate