Provided is a novel protein phosphatase inhibitor. The protein phosphatase inhibitor contains, as an active ingredient, a silicon compound represented by the following general formula (1) or a salt thereof, wherein R
1
, R
2
and R
3
are the same or different and represent a hydrocarbon group having 1 to 12 carbon atoms; X represents an optionally substituted hydrocarbon group having 3 to 36 carbon atoms or an optionally substituted heterocyclic group; and n represents an integer of 0 or 1.
提供的是一种新型蛋白
磷酸酶
抑制剂。该蛋白
磷酸酶
抑制剂包含以下通式(1)所表示的
硅化合物或其盐作为活性成分,其中R1,R2和R3相同或不同,表示具有1至12个碳原子的碳氢基团;X表示具有3至36个碳原子的可选取代的碳氢基团或可选取代的杂环基团;n表示0或1的整数。