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    • 35. 发明授权
    • Substituted thienylethylamines and process for their production
    • 取代的噻吩乙胺及其生产方法
    • US4970325A
    • 1990-11-13
    • US418340
    • 1989-10-06
    • Aleksander WarmJohn McGarrity
    • Aleksander WarmJohn McGarrity
    • C07D333/20
    • C07D333/20
    • Substituted thienylethylamines of the formula: ##STR1## wherein R is formyl, acetyl or benzoyl or is benzyl, which is ring-substituted by at least one halogen atom, and R.sub.1 is a lower alkyl, phenyl or substituted phenyl, are initial products for the production of antithrombolytically effective pharmaceutical agents. A process for the production of the above-mentioned compounds from substituted ethanolamines by their reaction with strong bases, further reaction with the resultant aziridines with 2-thienyllithium, and conversion of the resultant thienylethylamines with compounds of formula RX, wherein R has the above-mentioned meaning and X is a halogen.
    • 取代的下式的噻吩乙基胺:其中R是甲酰基,乙酰基或苯甲酰基,或是被至少一个卤素原子环取代的苄基,R 1是低级烷基,苯基或取代的苯基,是初始的 产品用于生产抗血栓溶解有效的药剂。 通过与强碱反应从取代的乙醇胺制备上述化合物的方法,与得到的氮丙啶与2-噻吩基锂的进一步反应,以及所得噻吩乙基胺与式RX化合物的转化,其中R具有上述结构, 并且X是卤素。
    • 36. 发明授权
    • Process for the production of (+) biotin
    • 生产(+)生物素的方法
    • US4876350A
    • 1989-10-24
    • US134210
    • 1987-12-16
    • John McGarrityLeander Tenud
    • John McGarrityLeander Tenud
    • C07B61/00C07D233/32C07D307/00C07D491/048C07D495/04C07D231/00
    • C07D495/04Y02P20/55
    • Process for the production of (+) biotin. A compound of the formula: ##STR1## wherein R.sub.1 is e.g., an (R)-1-phenylalkyl group, and R.sub.2 is, e.g., hydrogen. The desired diastereomer of the formula: ##STR2## is separated out. If R.sub.2 is H, a protective group is introduced by reaction with, e.g., an aliphatic acid chloride. The diastereomer is converted by reaction with a thiocarboxylic acid salt derivative into the corresponding thiolacetone, which is reacted with a Grignard reactant and subsequently water is split off. Alternatively, the corresponding thiolacetone is reacted with a compound of the formula:(C.sub.6 H.sub.5).sub.3 P.sup..sym. (CH.sub.2).sub.4 COOR.sub.3.X.sup..crclbar.wherein R.sub.3 is, e.g., H, and X is a halogen atom, in the presence of a base to provide a compound of the formula: ##STR3## Such compound is catalytically hydrogenated and then converted into (+) biotin by cleavage of the protective groups.
    • 生产(+)生物素的方法。 下式的化合物:其中R 1是例如(R)-1-苯基烷基,R 2是例如氢。 分离出所需的下式的非对映异构体:。 如果R 2为H,则通过与例如脂族酰氯反应引入保护基。 通过与硫代羧酸盐衍生物的反应将非对映异构体转化成相应的硫醇丙酮,其与格氏反应物反应,随后将水分离。 或者,相应的硫醇丙酮与下式化合物(C6H5)3P(+)(CH2)4COOR3X( - )反应,其中R3为例如H,X为卤素原子,在 碱以提供下式的化合物:该化合物被催化氢化,然后通过保护基团的裂解转化成(+)生物素。
    • 37. 发明授权
    • Process for the production of 4-hydroxy-2-oxo-pyrrolidin-1-yl acetamide
    • 制备4-羟基-2-氧代 - 吡咯烷-1-基乙酰胺的方法
    • US4824966A
    • 1989-04-25
    • US188702
    • 1988-05-04
    • Thomas MeulJohn McGarrity
    • Thomas MeulJohn McGarrity
    • C07D207/38C07D207/27
    • C07D207/38
    • Process for the production of 4-hydroxy-2-oxo-pyrrolidin-1-yl acetamide. A 4-(C.sub.1 -C.sub.2)-alkoxy-3-pyrrolin-2-on-1-yl-acetic acid (C.sub.1 -C.sub.4)-alkyl ester of the formula: ##STR1## wherein R.sub.1 is alkyl having 1 or 2 C atoms and R.sub.2 is alkyl having 1 to 4 C atoms, is reacted with either trichloromethylsilane in the presence of an alkali iodide or in an acid anhydrous medium to a 2,4-dioxo-pyrrolidin-1-yl-acetic acid (C.sub.1 -C.sub.4)-alkyl ester. The latter is optionally isolated and then hydrogenated with sodium borohydride to a 4-hydroxy-2-oxo-pyrrolidin-1-yl-acetic acid (C.sub.1 -C.sub.4)-alkyl ester. Finally, the 4-hydroxy-2-oxo-pyrrolidin-1-yl-acetic acid (C.sub.1 -C.sub.4)-alkyl ester is converted by amidation with ammonia to the desired end product.
    • 制备4-羟基-2-氧代 - 吡咯烷-1-基乙酰胺的方法。 具有下式的4-(C 1 -C 2) - 烷氧基-3-吡咯烷-2-酮-1-基 - 乙酸(C 1 -C 4) - 烷基酯,其中R 1是具有1或2个C原子的烷基 R2是具有1-4个碳原子的烷基,在碱金属碘化物存在下或在酸性无水介质中与三氯甲基硅烷反应成2,4-二氧代 - 吡咯烷-1-基 - 乙酸(C 1 -C 4) - 烷基酯。 后者任选地分离,然后用硼氢化钠氢化成4-羟基-2-氧代 - 吡咯烷-1-基 - 乙酸(C 1 -C 4) - 烷基酯。 最后,通过用氨的酰胺化将4-羟基-2-氧代 - 吡咯烷-1-基 - 乙酸(C 1 -C 4) - 烷基酯转化为所需的最终产物。