Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1997-07-08
1999-03-02
Daus, Donald G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544406, 544409, 544336, C07D24118
Patent
active
058773193
ABSTRACT:
A process for preparing 3-alkoxy-5-alkylpyrazin-2-amines of the general formula: ##STR1## wherein R.sup.1 is a C.sub.1-4 -alkyl group or an aryl group and R.sup.2 is a C.sub.1-4 -alkoxy group or an aryloxy group, starting either from aminomalononitrile or from aminoacetonitrile.
REFERENCES:
patent: 4017533 (1977-04-01), Ohtsuka
patent: 4193995 (1980-03-01), Wasson et al.
patent: 4560756 (1985-12-01), Brunnmueller et al.
patent: 4766214 (1988-08-01), Cozzi
Taylor, E.C., et al., J. Org. Chem., vol. 46, No. 7, (1981), pp. 1394-1402.
Neilsen, et al., J. Heterocycl. Chem., vol. 24, No. 6, (1987), pp. 1621-1628.
Sato, N., et al., J. Heterocycl. Chem., vol. 25, No. 6, (1988), pp. 1737-1740.
Lumma, W.C., et al., J. Med. Chem., vol. 26, No. 3, (1989), pp. 357-363.
Sato, N., J. Heterocycl. Chem., vol. 19, No. 3, (1982), pp 673-674.
Dennin, F., et al., J. Heterocycl. Chem., vol. 27, No. 6, (1990), pp. 1639-1643.
Abignente, E., et al., Farmaco Ed. Sci., vol. 36, No. 1, (1981), pp. 61-80.
Usami, K., et al., Tetrahedron, vol. 52, No. 37, (1996), pp. 12061-12090.
Qi, C.F., et al., J. Chem. Soc. Perking Trans. 1, No. 13, (1992), pp. 1607-1612.
Sato, N., J. Heterocycl. Chem., vol. 15, No. 4, (1978), pp. 665-670.
Taylor, E.C., et al., J. Amer. Chem. Soc., vol. 95, No. 19, (1973), pp. 6413-6418.
Chemical Abstracts, vol. 16, No. 24, (1922), pp. 101-102.
E.C. Taylor et al. J. Org. Chem., (1980), pp. 2485-2489.
Taylor et al. J. Am. Chem. Soc., 95, (1973), 6413-6418.
Sato J. Heterocycl. Chem. (1985), 1145-1146.
Brieden Walter
Fuchs Rudolf
Daus Donald G.
Lonza AG
LandOfFree
Process for preparing 3-alkoxy-5-alkylpyrazin-2-amines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing 3-alkoxy-5-alkylpyrazin-2-amines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing 3-alkoxy-5-alkylpyrazin-2-amines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-424196