Revision of structure of yellow compound, a reduction product from aequorin, photoprotein in jellyfish, Aequorea aequorea

Article abstract of DOI:10.1016/S0040-4039(00)91607-1

The structure of yellow compound from aequorin was revised by means of synthesis of stable analogs having tert-butyl group at the 2-position of the imidazopyrazinone chromophore. Comparing their absorption spectra concluded that the yellow compound should