| 摘要 |
The invention relates to a photographic element for forming neutral images comprising a cyan dye-forming coupler, a magenta dye-forming coupler of formulawherein Ra and Rb represents H or a substituent; X is hydrogen or a coupling-off group; Za, Zb, and Zc are a substituted methine group, =N-, =C-, or -NH-; and yellow dye-forming coupler of formula, whereinR5 is an alkoxy group with more than one carbon atom, aryloxy, anilino, arylthio, alkylthio, or dialkylamino groups linked to the anilide phenyl ring by oxygen, sulfur or nitrogen;R6 is selected from hydrogen, halogen, alkoxycarbonyl(-CO2R), carbamoyl(-CONRR'), carbonamido(-NRCOR'), sulfonate(-OSO2R), sulfamoyl (-SO2NRR'), sulfonamido(-NRSO2R'), or sulfonyl(-SO2R); R and R' may be hydrogen, alkyl or aryl groups;q is 1 to 4;R7 is alkyl, cyclic, or multicyclic alky, aryl, heterocyclic, heteroaromatic, and amine groups;R8, R9, and R10 are hydrogen, alkyl, aryl, or alkoxy groups.
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