AP2000001960A0 - Process for the preparation of pyrazole(4,3-d)pyrimidin-7-ones-3-pyridylsulphonyl compounds and intermediates thereof.
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Process for the preparation of pyrazole(4,3-d)pyrimidin-7-ones-3-pyridylsulphonyl compounds and intermediates thereof.
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A process is provided for the preparation of compounds of formula (i)herein comprising reacting a compound of formula (ii), (iii)or (iv)in the presence of or and a hydroxide trapping agent or in the case of compounds of formula (iv)reacting in the presence of an auxiliary base and a hydroxide trapping agent (i.E. or is substituted by the auxiliary base), wherein x is a leaving group or r1 and r4 are as defined above.
APAP/P/2000/001960A2000-07-282000-10-05Process for the preparation of pyrazole(4,3-d)pyrimidin-7-ones-3-pyridylsulphonyl compounds and intermediates thereof.
AP2000001960A0
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