The present invention provides a compound of Formula I:

##STR00001## wherein R.sup.1 is hydrogen or methyl; and R.sup.2 is:

##STR00002##

or a pharmaceutically acceptable salt thereof, useful for treating pain, including chronic pain, chronic lower back pain, diabetic peripheral neuropathic pain, and osteoarthritis pain.

In certain aspects, the invention provides a method for treating a disease or condition in a subject, the method comprising co-administering to a subject in need thereof a therapeutically effective amount of at least one ULK1-inhibiting pyrimidine, and a therapeutically effective amount of an mTOR inhibitor.

In certain aspects, the invention provides a method for treating a disease or condition in a subject, the method comprising co-administering to a subject in need thereof a therapeutically effective amount of at least one ULK1-inhibiting pyrimidine, and a therapeutically effective amount of an mTOR inhibitor.

The present invention describes new amino pyrimidine derivatives and pharmaceutically acceptable salts thereof which appear to interact with Bruton's tyrosine kinase (Btk). Accordingly, the novel amino pyrimidines may be effective in the treatment of autoimmune disorders, inflammatory diseases, allergic diseases, airway diseases, such as asthma and chronic obstructive pulmonary disease (COPD), transplant rejection, cancers e.g. of hematopoietic origin or solid tumors.

The present invention describes new amino pyrimidine derivatives and pharmaceutically acceptable salts thereof which appear to interact with Bruton's tyrosine kinase (Btk). Accordingly, the novel amino pyrimidines may be effective in the treatment of autoimmune disorders, inflammatory diseases, allergic diseases, airway diseases, such as asthma and chronic obstructive pulmonary disease (COPD), transplant rejection, cancers e.g. of hematopoietic origin or solid tumors.

The present invention relates to technical field of chemical synthesis of drugs, and provides a preparation method of Macitentan and intermediate compound thereof. Adding THF solution containing compound II and 5-bromo-2-chloropyrimidine slowly into THF solution containing base to react, or adding THF solution containing compound II and THF solution containing 5-bromo-2-chloropyrimidine slowly at the same time into THF solution containing base to react and obtain Macitentan (shown as compound I), wherein the base is selected from sodium hydride, potassium hydride, lithium hydride or lithium bis(trimethylsilyl)amide. The selectivity of the preparation method is very good, which is suitable for industrial production. The obtained product Macitentan has good quality and high yield. And the product compound II also has good quality and high yield, its HPLC purity is up to 99.0%, the content of impurity A is less than 0.20%, the content of impurity B is less than 0.25%. ##STR00001##

The present invention relates to technical field of chemical synthesis of drugs, and provides a preparation method of Macitentan and intermediate compound thereof. Adding THF solution containing compound II and 5-bromo-2-chloropyrimidine slowly into THF solution containing base to react, or adding THF solution containing compound II and THF solution containing 5-bromo-2-chloropyrimidine slowly at the same time into THF solution containing base to react and obtain Macitentan (shown as compound I), wherein the base is selected from sodium hydride, potassium hydride, lithium hydride or lithium bis(trimethylsilyl)amide. The selectivity of the preparation method is very good, which is suitable for industrial production. The obtained product Macitentan has good quality and high yield. And the product compound II also has good quality and high yield, its HPLC purity is up to 99.0%, the content of impurity A is less than 0.20%, the content of impurity B is less than 0.25%. ##STR00001##

The present disclosure encompasses novel solid state forms of Aprocitentan, Aprocitentan salts and Aprocitentan co-crystals, processes for preparation thereof, and pharmaceutical compositions thereof.

A compound indicated by formula (I) or a pharmacologically acceptable salt thereof is provided as a compound that can be a therapeutic or prophylactic drug for TRPC6-related diseases, such as nephrotic syndrome, membranous nephropathy, acute renal failure, septicemia, chronic renal failure, diabetic nephropathy, pulmonary hypertension, acute lung injury, heart failure, malignant tumor, and muscular dystrophy. (In the formula, Ar.sup.1, Ar.sup.2, X.sup.1-X.sup.3, R.sup.1, R.sup.3, R.sup.7, R.sup.8, L.sup.1, and L.sup.2 are as defined in the specifications.)

##STR00001##

A compound indicated by formula (I) or a pharmacologically acceptable salt thereof is provided as a compound that can be a therapeutic or prophylactic drug for TRPC6-related diseases, such as nephrotic syndrome, membranous nephropathy, acute renal failure, septicemia, chronic renal failure, diabetic nephropathy, pulmonary hypertension, acute lung injury, heart failure, malignant tumor, and muscular dystrophy. (In the formula, Ar.sup.1, Ar.sup.2, X.sup.1-X.sup.3, R.sup.1, R.sup.3, R.sup.7, R.sup.8, L.sup.1, and L.sup.2 are as defined in the specifications.)

##STR00001##