In additioncompound 1 was acetylated, then a kind of all acetylated derivative was obtained. It was important for the study on the relation of structure-activity.
此外对量大的化合物1，进行了乙酰化得到了它的全乙酰化物，为其活性变化和构效关系的研究奠定了基础。
2
In addition, increases in system complexity over time, tight development schedules that force poor design decisions, and lack of system documentation can compound the problem.
In addition to its compound eyes, the mantis has three small ocelli - simple eyes used primarily as light sensors, which probably assist with stability in flight.