Method for producing substituted imidazo[1,2-A]pyrazines of...

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

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C544S405000

Reexamination Certificate

active

07989621

ABSTRACT:
The present invention relates to a method for producing marine ostracod crustacean luciferin or a derivative thereof represented by a general formula (4), characterized by reacting a compound represented by a general formula (2) with a compound represented by a general formula (3):wherein R1, R2, R3, R5, Y1and Z1are the same as defined in the specification.

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Japanese Office Action mailed Apr. 5, 2011.

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