Abstract:
The invention relates to a process for the preparation of 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3-carboxamides and to the useful intermediate compounds of such process. The process allows to obtain the desired products in high yields and purity. The synthesis is starting from the coupling of an acetal with a beta-ketoester; the resultant compound is acetylated and then reacted with a dialkyl acetal of N,N-dimethylformamide to give an intermediate which is cyclized to 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3-carboxylic ester; the carboxylic ester is then hydrolyzed and the resultant carboxylic acid is finally condensed with an appropriate form of ammonia to give the desired carboxamide. The compounds prepared according to the process of the invention are endowed with protein kinase inhibiting activity and, more particularly, Cdc7 or Cdc7/Cdks inhibiting activity. The compounds are useful in the treatment of a variety of cancers, cell proliferative disorders and diseases associated with protein kinases.
Abstract:
The invention relates to a process for the preparation of 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3-carboxamides and to the useful intermediate compounds of such process. The process allows to obtain the desired products in high yields and purity. The synthesis is starting from the coupling of an acetal with a beta-ketoester; the resultant compound is acetylated and then reacted with a dialkyl acetal of N,N-dimethylformamide to give an intermediate which is cyclized to 5-(2-amino-pyrimidin-4-yl)-2-aryl-1H-pyrrole-3-carboxylic ester; the carboxylic ester is then hydrolyzed and the resultant carboxylic acid is finally condensed with an appropriate form of ammonia to give the desired carboxamide. The compounds prepared according to the process of the invention are endowed with protein kinase inhibiting activity and, more particularly, Cdc7 or Cdc7/Cdks inhibiting activity. The compounds are useful in the treatment of a variety of cancers, cell proliferative disorders and diseases associated with protein kinases.
Abstract:
A multi-layer, gas-barrier, biaxially oriented and heat-shrinkable film comprising a first outer heat-sealable layer a), an inner gas-barrier layer b), preferably of PVDC, and a second outer abuse resistant layer c), said film being characterized in that at least one layer of the structure, that can be an inner layer d) or, preferably, the second outer abuse resistant layer c), is a polyamide layer that comprises a major proportion of one or more amorphous polyamides. Preferably the amorphous polyamides of said polyamide layer have a Tg≦120° C., more preferably ≦110° C., and even more preferably ≦100° C. The invention also concerns the use of said films in a “thermoform-shrink” packaging process and the shrunk package obtained therefrom.