| 摘要 |
<p>The invention provides diazo compounds having the formula XYCNN and their parent hydrazones, where X is an ortho-nitro aromatic group such as o-nitrophenyl and Y is a hydrocarbon group such as methyl. The hydrazones may be prepared by reacting the corresponding ketone with hydrazine and the diazo compounds by hydrazone oxidation. The diazo compound may be reacted with an organic compound having a reactive hydrogen atom such as phosphate, thiophosphate, phosphonate, carboxyl and phenol, to form a caged compound from which the original organic compound can be released by photolysis, eg in situ in a biological system. Preferred organic compounds are ATP and other nucleotides.</p> |
