Production of
N-((2-alkoxy-6-methoxy-5-(trifluoromethyl)-1-naphthalenyl)carbonyl)-N-me
thylglycine esters
    5.
    发明授权
    Production of N-((2-alkoxy-6-methoxy-5-(trifluoromethyl)-1-naphthalenyl)carbonyl)-N-me thylglycine esters 失效
    制备N - ((2-烷氧基-6-甲氧基-5-(三氟甲基)-1-萘基)羰基)-N-甲基甘氨酸酯

    公开(公告)号:US4866197A

    公开(公告)日:1989-09-12

    申请号:US137390

    申请日:1987-12-23

    申请人: John G. Bauman

    发明人: John G. Bauman

    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.

    摘要翻译: 制备N - [[2-烷氧基-6-甲氧基-5-(三氟甲基)-1-萘基]羰基] -N-甲基甘氨酸酯及其制备方法。 所述酯本身是用于制备抑制醛糖还原酶并可用于治疗糖尿病并发症的化合物的中间体。

    6-azido-2-fluoropurine, useful in the synthesis of nucleosides
    7.
    发明授权
    6-azido-2-fluoropurine, useful in the synthesis of nucleosides 失效
    6-AZIDO-2-FLUOROPURINE,有用的合成核酸

    公开(公告)号:US5180824A

    公开(公告)日:1993-01-19

    申请号:US620236

    申请日:1990-11-29

    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.

    摘要翻译: 本发明涉及使用6-叠氮基-2-氟嘌呤作为新型中间体合成氟达拉滨,氟达拉滨磷酸盐和相关核苷药物学的新方法。 特别地,本发明涉及氟达拉滨的合成,其中在昂贵的偶联步骤之前进行相对低的产率氟化步骤。

    Production of 2-alkoxy or
aryl(lower)alkoxy-6-methoxy-1-naphthalenecarboxaldehyde
    8.
    发明授权
    Production of 2-alkoxy or aryl(lower)alkoxy-6-methoxy-1-naphthalenecarboxaldehyde 失效
    2-烷氧基或芳基(低级)烷氧基-6-甲氧基-1-萘甲醛的制备

    公开(公告)号:US4914243A

    公开(公告)日:1990-04-03

    申请号:US344187

    申请日:1989-04-27

    申请人: John G. Bauman

    发明人: John G. Bauman

    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.

    摘要翻译: 通过在2-位上用亲核硫化物将2,6-二甲氧基-1-萘甲醛脱甲基而制备2-烷氧基或芳基(低级)烷氧基-6-甲氧基-1-萘甲醛化学中间体的方法,并使所得苯酚盐 与烷基化试剂盐。 所述醛本身是制备抑制醛糖还原酶并可用于治疗糖尿病并发症的化合物的中间体。