摘要:
A method of using a chimeric molecule made up of an antisense oligonucleotide attached to a 2',5'-oligoadenylate molecule to specifically cleave a sense strand of RNA, wherein the antisense oligonucleotide of the chimeric molecule is hybridized to the sense strand of RNA in the presence of 2',5'-dependent RNase.
摘要:
An improvement to methanol carbonylation processes utilizing a homogeneous iridium catalyst system comprises adding a rate-promoting amount of an insoluble pyridine ring-containing polymer. Typically, polyvinylpyridine is added to the reactor in amounts of up to about 2 wt. percent.
摘要:
The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities. The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining less than about 4.5 wt % methyl iodide in the reaction medium during the course of the reaction.
摘要:
A method of using a chimeric molecule made up of an antisense oligonucleotide attached to a 2',5'-oligoadenylate molecule to specifically cleave a sense strand of RNA, wherein the antisense oligonucleotide of the chimeric molecule is hybridized to the sense strand of RNA in the presence of 2',5'-dependent RNase.