Doubled triphenylmethane dyes having bis acylpiperazine linkage

Details Doubled triphenylmethane dyes having bis acylpiperazine linkage Doubled triphenylmethane dyes having bis acylpiperazine linkage

1990-05-10

1991-09-24

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

544 587, 544 82, 544121, 544357, 544360, 544387, C09B 1120, D21H 2128

Patent

active

050515047

ABSTRACT:
Triphenylmethane dyes of the formula ##STR1## where each R.sup.1 is independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, or two R.sup.1 radicals together with the nitrogen atom joining them form a heterocyclic radical,

REFERENCES:
patent: 3347860 (1967-10-01), Irikura et al.
patent: 3763166 (1973-10-01), Dexter et al.
patent: 3828071 (1974-08-01), Kast et al.
patent: 4000135 (1976-12-01), Kast et al.
patent: 4223144 (1980-09-01), Kast et al.
patent: 4340540 (1982-07-01), Hermann
Kast et al., Chemical Abstracts, vol. 91, #6408q (1979).
Irikura et al., J. Med. Chem., vol. II, pp. 801 to 804 (1968).

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