Abstract: This invention provides substituted bicyclic pyrimidine compounds of the following formula: or a pharmaceutically acceptable salt thereof, wherein R is selected from the group consisting of H and a straight or branched chain alkyl group having from 1 to 10 carbon atoms, wherein the alkyl group is partially or completely saturated, each having tubulin and multiple receptor inhibition properties. Methods of treating a patient diagnosed with cancer are disclosed comprising administering to the patient a therapeutically effective amount of the substituted bicyclic pyrimidine compounds, or a pharmaceutically acceptable salt thereof.

Abstract: The present invention provides tricyclic compounds, pharmaceutically acceptable salts, prodrugs, solvates, or hydrates thereof, having antimitotic activity, anti-multidrug resistance activity, for example P-glycoprotein inhibition, and antitumor activity, and which inhibit paclitaxel sensitive and resistant tumor cells. Also provided are methods of utilizing these compounds for treating tumor cells and inhibiting mitosis of cancerous cells.

Abstract: A compound of Formula I, or optionally a salt or a hydrate of the compound of Formula I is provided: wherein X is one selected from the group consisting of wherein R is an alkyl group having from one to six carbon atoms, and wherein R2 is a halogen atom. A pharmaceutical composition comprising a compound of Formula I, or optionally a salt or a hydrate of the compound of Formula I, and a pharmaceutically acceptable carrier, is provided. A method of treating a patient with cancer is set forth including administering a therapeutically acceptable amount of the compound of Formula I, or a salt or a hydrate of the compound of Formula I, or a pharmaceutical composition comprising a compound of Formula I.

Abstract: Bicyclic and tricyclic pyrimidine tyrosine kinase inhibitors with antitubulin activity are provided in the present invention. The compositions of the present invention possess dual activity in a single agent of potent vascular endothelial growth factor receptor inhibitory activity as well as antitubulin activity. Water soluble salts of these compositions are also described. Methods of treating a patient having cancer, macular degeneration, and arthritis with the compositions and salts thereof of the present invention are disclosed.

Abstract: The present invention provides a compound of Formula II, and salts thereof, and a pharmaceutical composition comprising a compound of Formula II: wherein R is hydrogen or an alkyl group having from one to ten carbon atoms, and wherein R3 is hydrogen, an alkyl group having from one to ten carbon atoms, or a halogen. Preferably the compound of Formula II includes wherein R3 is a halogen, and most preferably wherein the halogen is chlorine. Methods of treating a patient with cancer with these compounds are also provided.

Abstract: The present invention discloses a compound comprising the formula: wherein R is hydrogen or an alkyl group having from one to ten carbon atoms, or a compound of the formula wherein the S is replaced by CH2 or O, and optionally comprising a pharmaceutically acceptable salt or hydrate thereof. A method of treating a patient having cancer or a disease comprising administering to a patient an effective amount of the compound or pharmaceutically acceptable salt or hydrate thereof.

Abstract: This invention provides substituted bicyclic pyrimidine compounds and pharmaceutically acceptable salts, hydrates, and solvates of the compounds, each having tubulin and multiple receptor inhibition properties. Methods of treating a patient diagnosed with cancer is disclosed comprising administering to the patient a therapeutically effective amount of the substituted bicyclic pyrimidine compounds and pharmaceutically acceptable salts, hydrates, and solvates of the compounds, for treating cancer.

Abstract: The present invention provides tricyclic compounds having cytostatic and cytotoxic activity in a single molecule having receptor tyrosine kinase(s), dihydrofolate reductase, thymidylate synthase and/or dihydroorotate dehydrogenase inhibitory activity, which are useful as anti-angiogenic and anti-tumor agents. Also provided are methods of utilizing these inhibitors to treat tumor cells and other proliferative diseases and disorders.

Abstract: This invention provides substituted pyrimidine compounds having the formula: wherein X is absent, CH2, S, or O, and R is an alkyl group having from one to ten carbon atoms, and optionally salts, hydrates, or solvates thereof, that are useful in treating a patient having a disease or cancer. The compounds of this invention are useful as multi-enzyme antifolates selectively targeting the folate receptor (FR). Further, a method of making 5- and 6-substituted cyclopenta[d]pyrimidine for nonclassical and classical antifolates as TS and DHFR inhibitors is provided.

Abstract: A compound of the Formula I and optionally a pharmaceutically acceptable salt thereof is provided: Formula I, wherein, R is one selected from the group consisting of H and CH3; n is an integer ranging from 1 to 4; X is one selected from the group consisting of —CH2—, O, S, —NH—, —NHCHO—, —NHCOCH3—, and —NHCOCF3—; and Ar is one selected from the group consisting of (a) 1,4-phenyl, (b) 2?-fluoro-1,4-phenyl, and (c) 2,5-thienyl. Methods of treating a patient having cancer, targeting mitochondrial metabolism, and targeting SHMT2 and MTHFD2 using the compounds of this invention are disclosed.

Abstract: The present invention provides a compound of Formula I, and salts thereof, and a pharmaceutical composition comprising a compound of Formula I: wherein R1 is selected from the group consisting of and R2 is an alkyl group having from one to ten carbon atoms, or wherein R2 is selected from the group consisting of R1 is an alkyl group having from one to ten carbon atoms; and R is H, or an alkyl group having from one to ten carbon atoms, and R3 is H, an alkyl group having from one to ten carbon atoms, or a halogen. Preferably the compound of Formula V includes wherein R3 is a halogen, and most preferably wherein the halogen is chlorine. Methods of treating a patient with cancer with these compounds are also provided.

Abstract: The present invention discloses a compound comprising the formula: wherein R is hydrogen or an alkyl group having from one to ten carbon atoms, or a compound of the formula wherein the S is replaced by CH2, and optionally comprising a pharmaceutically acceptable salt, hydrate, or solvate thereof. A method of treating a patient having cancer or a disease comprising administering to a patient an effective amount of the compound or pharmaceutically acceptable salt, hydrate, or solvate thereof.

Abstract: The present invention provides tricyclic compounds, pharmaceutically acceptable salts, solvates, or hydrates thereof, having antimitotic activity, anti-multidrug resistance activity, for example P-glycoprotein inhibition, and antitumor activity, and which inhibit paclitaxel sensitive and resistant tumor cells. Also provided are methods of utilizing these compounds for treating tumor cells and inhibiting mitosis of cancerous cells.

Abstract: The present invention provides tricyclic compounds having cytostatic and cytotoxic activity in a single molecule having receptor tyrosine kinase(s), dihydrofolate reductase, thymidylate synthase and/or dihydroorotate dehydrogenase inhibitory activity, which are useful as anti-angiogenic and anti-tumor agents. Also provided are methods of utilizing these inhibitors to treat tumor cells and other proliferative diseases and disorders.

Abstract: The present invention provides substituted pyrrolo-, furano-, and cyclopentylpyrimidine bicyclic compounds of Formula III, and Formula IV, and pharmaceutically acceptable salts, solvates, and hydrates thereof, having antimitotic activity, anti-multidrug resistance activity, such as for example P-glycoprotein inhibition, and antitumor activity, and which inhibit paclitaxel sensitive and resistant tumor cells. Also provided are methods of utilizing these compounds and pharmaceutical compositions for treating tumor cells and inhibiting mitosis of cancerous cells.

Abstract: The present invention provides conformationally restricted 4-substituted 2,6-dimethylfuro[2,3-d]pyrimidine compounds and pharmaceutical compositions comprising these compounds. Preferably, the compounds exhibit dual inhibition of microtubule assembly and receptor tyrosine kinases. Methods of treating cancer comprising administering a therapeutically effective amount of at least one conformationally restricted 4-substituted 2,6-dimethylfuro[2,3-d]pyrimidine compound to a patient is disclosed.

Abstract: This invention provides substituted pyrimidine compounds having the formula: wherein X is absent, CH2, S, or O, and R is an alkyl group having from one to ten carbon atoms, and optionally salts, hydrates, or solvates thereof, that are useful in treating a patient having a disease or cancer. The compounds of this invention are useful as multi-enzyme antifolates selectively targeting the folate receptor (FR). Further, a method of making 5- and 6-substituted cyclopenta[d]pyrimidine for nonclassical and classical antifolates as TS and DHFR inhibitors is provided.

Abstract: Fused cyclic pyrimidine compounds, including tautomers thereof, and pharmaceutically acceptable salts, prodrugs, solvates and hydrates thereof, are disclosed having the general Formula I: These compounds are useful in methods for treating cancer, selectively targeting cancerous cells via the proton coupled folate transporter, folate receptor alpha, and/or folate receptor beta pathways, inhibiting GARFTase in cancerous cells, and selectively targeting activated macrophages in a patient having an autoimmune disease, such as rheumatoid arthritis.

Abstract: The present invention provides a compound of Formula I: wherein R is H, a methyl group, an ethyl group, a n-propyl group, an iso-propyl group, or a n-butyl group; and R1 is H, a 4?-methyl group, a 4?-OH, a 4?-OMe group, a 2?,3?-C2H4 group, a 3?,4?-C2H4 group, a 3?,4?-diF, a 3?,4?,5?-triF, or a 4?-OCF3; and optionally including a salt or a hydrate of said compound, and further provides a pharmaceutical composition comprising the compound of Formula I and one or more acceptable pharmaceutical carriers. A method of treating a patient having cancer comprising administering a therapeutically effective amount of a compound of Formula I, or a pharmaceutical composition comprising a compound of Formula I and one or more acceptable pharmaceutical carriers to the patient is disclosed.

Abstract: The present invention provides substituted pyrrolo-, furano-, and cyclopentylpyrimidine bicyclic compounds of Formula III, and Formula IV, and pharmaceutically acceptable salts, solvates, and hydrates thereof, having antimitotic activity, anti-multidrug resistance activity, such as for example P-glycoprotein inhibition, and antitumor activity, and which inhibit paclitaxel sensitive and resistant tumor cells. Also provided are methods of utilizing these compounds and pharmaceutical compositions for treating tumor cells and inhibiting mitosis of cancerous cells.