摘要:
Novel compounds of Formula ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the above formula to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
3-O-Glycosyl derivatives of 16-membered macrolides such as O-.alpha.-L-cladinosyl-(1.fwdarw.3)-12,13-dehydro-12,13-deoxorosaramicin, 2", 4",4'"-tri-O-acetyl-O-(4'-O-phenoxyacetyl-.alpha.-L-cladinosyl)-(1.fwdarw.3)-desmyconsin and pharmaceutically acceptable acid addition salts thereof useful as antibacterials are disclosed.
摘要:
Novel compounds of Formula ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the Formula 1.0 to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
Novel compounds of Formula ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the Formula 1.0 to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
Novel carbonyl piperazinyl and piperidinyl compounds and pharmaceutical compositions are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering the novel carbonyl piperazinyl or piperidinyl compound to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
Novel compounds of Formula are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the above formula to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
Novel compounds of Formula ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the formula to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.
摘要:
There are disclosed novel di- and tri-O-acetyl-23-O-demycinosyl-4"-O-iso-valeryltylosins and the pharmaceutically acceptable salts thereof, which have improved activity as antibacterials and provide higher blood levels than other tylosin derived compounds. These compounds have the following structural formula ##STR1## wherein R is acetyl or hydrogen and z is for example O or ##STR2##Processes for selectively deacylating the 2' and 4"-positions of 3,2',4",4'"-tetra-O-acyltylosin or 2',4",4'"-tri-O-acyltylosin and for the selective acylation of 2',4"-di-O-acyltylosin and 2',4",4'"-tri-O-acyltylosin are also disclosed.