摘要:
This invention relates to a process for the production of 2-fluoropurine derivatives from 2-aminopurine derivatives, which are reacted in HF/pyridine or HF/pyridine/H.sub.2 O in the presence of a nitrite.
摘要翻译:本发明涉及一种由2-氨基嘌呤衍生物生产2-氟嘌呤衍生物的方法,其在亚硝酸盐存在下在HF /吡啶或HF /吡啶/ H 2 O中反应。
摘要:
A process for the production of fludarabine or fludarabine phosphate is provided, wherein the nucleoside guanosine or a suitable derivative is employed as the starting material. The guanosine starting material is subjected to (a) conversion of the 6-keto group into a 6-amino group, (b) conversion of the 2-amino group to a 2-fluoro group, and (c) conversion of the ribofuranosyl moiety to an arabinofuranosyl moiety. Steps (a), (b), and (c) can be performed individually or concomitantly and in any sequence.
摘要:
This invention is directed to acyl piperazine derivatives of the following formula (Id): wherein R1b, R3, R4, R5, R6 and R10 are described herein. These derivatives are useful as anti-inflammatory agents. This invention is also directed to pharmaceutical compositions containing the derivatives, and methods of using the derivatives to treat inflammatory disorders in humans.
摘要:
This invention pertains to novel methods of synthesizing fludarabine, fludarabine phosphate and related nucleoside pharmacologic agents utilizing 6-azido-2-fluoropurine as a novel intermediate.In particular this invention pertains to a synthesis of fludarabine where the relatively low yield fluorination step is done before the costly coupling step.
摘要:
Process for the production of 2-alkoxy or aryl(lower)alkoxy-6-methoxy-1-naphthalenecarboxaldehyde chemical intermediates by demethylating 2,6-dimethoxy-1-naphthalenecarboxaldehyde with a nucleophilic sulfide reagent at the 2-position and reacting the resulting phenolate salt with an alkylating reagent. Said aldehydes are themselves intermediates for the manufacture of compounds which inhibit aldose reductase and are useful for the treatment of diabetic complications.
摘要:
This invention is directed to lipoxin A4 analogs of the following formula (I) and (II): wherein R1, R2, R3, R4 and R5 are described herein. These analogs are useful in treating inflammatory and autoimmune disorders in humans. These analogs are also useful in treating pulmonary or respiratory tract inflammation in humans.
摘要:
This invention is directed to acyl piperazine derivatives which are useful as anti-inflammatory agents. This invention is also directed to pharmaceutical compositions containing the compounds of the invention, and methods of using the compounds to treat inflammatory disorders in humans.
摘要:
This invention is directed to acyl piperazine derivatives, for example, of the following formula (Ia): wherein R1a, R2, R3, R4, R5, and R6 are described herein. These derivatives are useful anti-inflammatory agents. This invention is also directed to pharmaceutical compositions containing the derivatives, and methods of using the derivatives to treat inflammatory disorders in humans.
摘要:
Process for the production of N-[[2-alkoxy-6-methoxy-5-(trifluoromethyl)-1-naphthalenyl]carbonyl]-N-methylglycine esters and intermediates for their production. Said esters are themselves intermediates for the manufacture of compounds which inhibit aldose reductase and are useful for the treatment of diabetic complications.
摘要:
This invention is directed to acyl piperazine derivatives which are useful as anti-inflammatory agents. This invention is also directed to pharmaceutical compositions containing the compounds of the invention, and methods of using the compounds to treat inflammatory disorders in humans.