申请人:SEKISUI MEDICAL CO., LTD.
公开号:US10981940B2
公开(公告)日:2021-04-20
The invention is to develop a protecting group that does not solidify or insolubilize a compound in which a functional group has been protected, and facilitates separation and purification after a reaction. Disclosed is a trityl compound represented by General Formula (1):
wherein Y represents a hydroxy group or a halogen atom; at least one of R1 to R15 represents a group represented by Formula (2):
—O—R16—X-A (2)
while the other groups each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms;
R16 represents a linear or branched alkylene group having 1 to 16 carbon atoms;
X represents O or CONR17 (here, R17 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms); and
A represents a group represented by, for example, Formula (3):
wherein R18, R19, and R20, which may be identical or different, each represent a linear or branched alkyl group having 1 to 6 carbon atoms, or an aryl group which may have a substituent.
本发明旨在开发一种保护基团,该保护基团不会使其中的官能团受到保护的化合物凝固或不溶解,并且有利于反应后的分离和纯化。本发明公开了一种由通式(1)表示的三苯甲基化合物:
其中 Y 代表羟基或卤原子;R1 至 R15 中至少有一个代表由式(2)表示的基团:
-O-R16-X-A (2)
而其他基团分别代表氢原子、卤素原子、具有 1 至 4 个碳原子的烷基或具有 1 至 4 个碳原子的烷氧基;
R16 代表具有 1 至 16 个碳原子的直链或支链亚烷基;
X 代表 O 或 CONR17(此处,R17 代表氢原子或具有 1 至 4 个碳原子的烷基);以及
A 代表例如式 (3) 所代表的基团:
其中 R18、R19 和 R20 可以相同或不同,各自代表一个具有 1-6 个碳原子的直链或支链烷基,或一个可以具有取代基的芳基。