Patent ID: 11878279
Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Field: Measurement (Instruments)
Classification: CPC B  C  G | IPC B  C  G

Claim 4:
5. The production method according to claim 1, wherein each of X1, X2 and X3 is independently one selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group, a cycloalkenyl group and an aromatic hydrocarbon group, each of which optionally has one to three substituents selected from the group consisting of a primary, secondary or tertiary amino group, a hydroxy group, an alkoxy group, an aryloxy group, a halogen atom, a nitro group, a cyano group, a formyl group, an alkanoyl group and an arylcarbonyl group.