Syntheses of Nitro-Substituted Aryl Diazirines. An Entry to Chromogenic Carbene Precursors for Photoaffinity Labeling.
作者:Yasumaru HATANAKA、Makoto HASHIMOTO、Hitoshi NAKAYAMA、Yuichi KANAOKA
DOI:10.1248/cpb.42.826
日期:——
3-Phenyl-3-trifluoromethyl-diazirine derivatives with nitro and alkoxy substituents on their aromatic ring have been synthesized as carbene precursors for chromogenic detection of photolabeled products. Photolysis of the diazirines in methanol or cyclohexane gave intermolecular O-H or C-H insertion products, respectively. Spectroscopic properties of the photoproducts are such that detection of photolabeled products may be performed in a spectral region where the absorption due to most biological macromolecules is negligible. A carbon-14 analog of the diazirine was also prepared for microscale detection of labeled products. These nitro-substituted aryl diazirines should be applicable to a wide range of photoaffinity labeling studies, from tracer experiments to preparative isolation of labeled products by HPLC with spectrophotometric detection.
合成了具有硝基和醚基取代基的3-苯基-3-三氟甲基-二氟啉衍生物,作为光标记产物的卡宾前驱体用于色谱检测。在甲醇或环己烷中光解二氟啉分别生成了分子间的O-H或C-H插入产物。光产物的光谱特性使得在大多数生物大分子的吸收可以忽略的光谱区域内进行光标记产物的检测成为可能。还制备了二氟啉的碳-14同位素类似物,用于微量标记产物的检测。这些硝基取代的芳基二氟啉应适用于广泛的光亲和标记研究,从示踪实验到通过HPLC配合光谱光度检测进行标记产物的制备分离。