An object of the present invention is to develop a protecting group, which can prevent solidification or insolubilization of a compound by protecting a functional group to achieve easy separation and purification after a reaction.
A diphenylmethane compound represented by general formula (1):
wherein Y represents —OR19 (wherein R19 represents a hydrogen atom or an active ester-type protecting group), —NHR20 (wherein R20 represents, for example, a hydrogen atom, a C1-6 linear or branched alkyl group, or an aralkyl group, at least one of R1 to R10 represents a group represented by formula (2):
—O—O—R11—X-A (2)
and the others each independently represent a hydrogen atom, a halogen atom, a C1-4 alkyl group, or a C1-4 alkoxy group; R11 represents a C1-16 linear or branched alkylene group; X represents O or CONR21 (wherein R21 represents a hydrogen atom, or a C1-4 alkyl group; and A represents, for example, a group represented by formula (3).
本发明的目的是开发一种保护基团,通过保护官能团来防止化合物凝固或不溶解,以实现反应后易于分离和纯化。
由通式(1)代表的
二苯基甲烷化合物:
其中 Y 代表-OR19(其中 R19 代表氢原子或活性
酯类保护基团)、-NHR20(其中 R20 例如代表氢原子、C1-6 直链或支链烷基或芳烷基,R1 至 R10 中至少有一个代表由式(2)表示的基团):
-O-O-R11-X-A(2)
R11 代表 C1-16 直链或支链亚烷基;X 代表 O 或 CONR21(其中 R21 代表氢原子或 C1-4 烷基;A 代表例如式 (3) 所代表的基团)。