摘要:
A process for the direct crystallization of a compound of the formula I: or a pharmaceutically acceptable salt thereof, is disclosed, wherein R1 and R2 represent H, C1-10 alkyl, aryl or heteroaryl, or substituted C1-10 alkyl, aryl or heteroaryl and X+ represents a charge balancing group, comprising extracting a solution containing a crude compound of formula I or Ia: or a pharmaceutically acceptable salt thereof, wherein each X+ is a charge balancing group, and R1 and R2 are as described above with a C4-10 alcohol, collecting and crystallizing the resulting aqueous phase to produce a crystalline compound of formula I.
摘要:
A stabilized carbapenem intermediate compound represented by the formula 1: or a salt thereof is disclosed, wherein P represents a carboxyl protecting group and X represents a charge balancing group. In addition, a process for synthesizing a compound represented by formula 2: is disclosed wherein X+ is a charge balancing group, comprising: deprotecting a compound of the formula 1 to produce a compound 2.
摘要翻译:公开了由式1表示的稳定化的碳青霉烯中间体化合物或其盐,其中P表示羧基保护基,X表示电荷平衡基团。另外,公开了由式2表示的化合物的合成方法:其中 X +是电荷平衡基团,包括:使式1的化合物去保护以产生化合物2。
摘要:
A process for preparing a crystalline, carbapenem monosodium salt of formula IIa: characterized by the steps a) adding about 10 to 30% of an organic solvent to an aqueous solution of the carbapenem, b) cooling the resulting solution to less than −5° C., c) adjusting the pH using a solution containing an acid in an organic solvent to give the appropriate pH for crystallization, and d) crystallizing the compound by adding methanol, and a C2-5 alcohol at between −5 and −25° C.
摘要:
A process of synthesizing a compound of the formula 1: ##STR1## is described. A compound of the formula 2: ##STR2## is reacted with diphenylphosphinic chloride to activate the carboxylic acid group, and then reacted with methanesulfonyl chloride to produce a compound of formula 4: ##STR3## Compound 4 is then reacted with a group II metal sulfide source in water to produce a compound of formula 1.
摘要:
A process for preparing a crystalline, carbapenem monosodium salt of formula IIa: characterized by the steps a) adding about 10 to 30% of an organic solvent to an aqueous solution of the carbapenem, b) cooling the resulting solution to less than −5° C., c) adjusting the pH using a solution containing an acid in an organic solvent to give the appropriate pH for crystallization, and d) crystallizing the compound by adding methanol, and a C2-5 alcohol at between −5 and −25° C.
摘要:
A process of synthesizing a compound of the formula 1: ##STR1## is described. A compound of the formula 2: ##STR2## is reacted with diphenylphosphinic chloride to activate the carboxylic acid group, and then reacted with methanesulfonyl chloride to produce a compound of formula 4: ##STR3## Compound 4 is then reacted with a group II metal sulfide source in water to produce a compound of formula 1.
摘要:
An integral strip and fastener installation system is provided for light weight slate and tile roofing systems installed with a single overlap between each row or course of tile. A specialized fastener hook is formed with one or more lateral projections or wings installed underneath one or more slate tiles to anchor the fastener to the roof at least in part by the weight of the overlying tiles. This anchoring supports and reinforces the open mouth of the hook against deflection from high winds and thereby enables the hook to hold a tile securely under high wind loads.
摘要:
The present invention provides compounds which are modulators of TNF-α signaling and methods of use thereof for treating a patient having a TNF-α mediated condition. The compounds can be represented by the following structural formulas:
摘要:
An integral strip and fastener installation system is provided for light weight slate and tile roofing systems installed with a single overlap between each row or course of tile. A specialized fastener hook is formed with one or more lateral projections or wings installed underneath one or more slate tiles to anchor the fastener to the roof at least in part by the weight of the overlying tiles. This anchoring supports and reinforces the open mouth of the hook against deflection from high winds and thereby enables the hook to hold a tile securely under high wind loads.
摘要:
A double sided polypropylene knit loop fabric comprises at least one and preferably both of the inner and outer loops comprised of polypropylene yarn forming cantilevered loops from a knit fabric. Polypropylene has many different characteristics than those of cotton or cotton blends. Accordingly, by making at least one of the loops, if not both of the loops, and the tie yarn out at least substantially, if not principally, polypropylene, a fabric can be produced which has different characteristics than a cotton fabric of similar construction.