文章投后给出修改建议，如下：

Page 7; para 2; line 44-51: Authors have reported the"head-to-head"cycloaddition to generate 2, using the MS fragmentation pattern based on
previously reported study in Tetrahedron, 2013, 69, 11074–11079. This reviewer believes that the structure can be logically better explained using the tell-tale presence and absence of plausible masses in the scenario of head to head mode. Please expand/explain


审稿人大致意思是觉得稿件中原来的表述不好，换一种方式能更好的解释2的结构，对粗体字句中......the tell-tale presence and absence of plausible masses .....具体是什么意思拿捏不准，特别是the tell-tale presence ，请虫友们不吝赐教！ 返回小木虫查看更多