abstract |
The present invention relates to a compound represented by the formula (1A). G represents a group selected from the group consisting of a monovalent group represented by the formula (GP) and a monovalent group represented by the formula (GS). R4, R5, R6, R7, R8, R9, R10, R11, and R12 each independently represent a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogeno group, and a halogeno alkyl group. |