| 摘要 |
PCT No. PCT/EP92/00505 Sec. 371 Date Nov. 1, 1993 Sec. 102(e) Date Nov. 1, 1993 PCT Filed Mar. 6, 1992 PCT Pub. No. WO92/19684 PCT Pub. Date Nov. 12, 1992Pyridone dyes useful for thermal transfer have the formula <IMAGE> (I) wherein R1, R2, R3, Y, X and Z are defined in the specification.
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