preechinulin + dimethylallyl diphosphate = tardioxopiperazine A + diphosphate
preechinulin + dimethylallyl diphosphate = tardioxopiperazine a + diphosphate
preechinulin + dimethylallyl diphosphate = tardioxopiperazine A + diphosphate
preechinulin + dimethylallyl diphosphate = tardioxopiperazine a + diphosphate