Benzo[1,2,5]oxadiazoles and benzol[1,2,5]thiadiazoles useful...

Details Benzo[1,2,5]oxadiazoles and benzol[1,2,5]thiadiazoles useful... Benzo[1,2,5]oxadiazoles and benzol[1,2,5]thiadiazoles useful...

2004-04-02

2009-12-15

Saeed, Kamal A (Department: 1626)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C514S361000, C514S364000, C548S125000, C548S134000

Reexamination Certificate

active

07632851

ABSTRACT:
The present invention relates to novel benzo[1,2,5]oxadiazoles and benzo[1,2,5]thiadiazoles of formula (I) wherein X is O or S, R1is 5-(2-fluoro-ethylamino)-thiazol-2-yl, 5-(2-18F-ethylamino)-thiazol-2-yl or a group of formula (a) wherein Y is CH or N, R2is NHCH3, NH11CH3, N(CH3)11CH3, N(CH3)2, N(11CH3)2, NH(CH2)nF, NH(CH2)n18F, N(CH3)(CH2)nF, N(CH3)—(CH2)n18F, O—(CH2)nF, O—(CH2)n18F, CONH(CH2)nF or CONH(CH2)n18F (n being in each case 2 to 4) and R3is hydroxy, (C1-4)alkoxy, hydrogen or nitro, in free base or acid addition salt form; their preparation, their use as markers in diagnosis and compositions containing them.

REFERENCES:
patent: 1 110 945 (2001-06-01), None
patent: WO 00/10614 (2000-03-01), None
Domschke, G. “ESR Study of the Reaction of Trithiazyl Trichloride with Primary Aromatic Amines.” Magnetic Resonance in Chemistry 28(1990): 797-806.
Patent Abstracts of Japan, vol. 1999, No. 13, (1999) & JP 11 228550 (1999).

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