Production method of 2,6-dihalopurine

Details Production method of 2,6-dihalopurine Production method of 2,6-dihalopurine

2007-12-11

2007-12-11

Berch, Mark L. (Department: 1624)

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

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

Reexamination Certificate

active

10509802

ABSTRACT:
By reacting the compound of the formula [Ia] or [Ib] with halosilane compound and an agent for diazo reaction, 2,6-dihalopurine of the formula [II] can be produced conveniently in a high yield and can be easily isolated, wherein each symbol is as defined in the specification

REFERENCES:
patent: 2844576 (1958-07-01), Goldman et al.
patent: 3314938 (1967-04-01), Kawashima
patent: 6936713 (2005-08-01), Masai et al.
patent: 0 543 095 (1993-05-01), None
patent: 0 543 095 (1993-05-01), None
patent: 0 684 243 (1995-11-01), None
patent: 0 684 243 (1995-11-01), None
patent: 1 172 365 (2002-01-01), None
patent: 1 172 365 (2002-01-01), None
patent: 45-11508 (1970-04-01), None
patent: WO-93/15075 (1993-08-01), None
patent: WO-93/15075 (1993-08-01), None
patent: WO-02/081472 (2002-10-01), None
patent: WO-02/081472 (2002-10-01), None
Francom and Morris J. Robins J. Org. Chem.; 2003; 68(2) pp. 666-669.
Graynskwonsschultzpg: “Combinatorial synthesis of 2,9-substituted purines” Tetrahedron Letters, Elsevier Science Publishers, Amsterdam, NL, vol. 38, No. 7, 1997, pp. 1161-1164.
Elion et al., J. of American Chem. Soc., vol. 78, pp. 3508-3510, (1956).
Dhanda et al., J. Chem. Soc., Perkin Trans. 1, pp. 3469-3475, (1999).
Harnden et al., J. Chem. Soc., Perkin Trans. 1, pp. 2207-2213, (1989).
Montgomery et al., J. of American Chem. Soc., vol. 80, pp. 404-408, (1958).
Robins et al., J. Org. Chem., vol. 19, pp. 930-933, (1954).
Gray et al., Tetrahedron Letters, vol. 38, No. 7, pp. 1161-1164, (1997).

Affiliated with

Also associated with

Rating

Production method of 2,6-dihalopurine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production method of 2,6-dihalopurine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production method of 2,6-dihalopurine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3890726