Abstract: The present invention is directed to spirocyclic compounds which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPH1), that are useful in the treatment of diseases or disorders associated with peripheral serotonin including, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, and low bone mass diseases, as well as serotonin syndrome, and cancer.

Abstract: The present invention is directed to spirocyclic compounds which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPH1), that are useful in the treatment of diseases or disorders associated with peripheral serotonin including, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, and low bone mass diseases, as well as serotonin syndrome, and cancer.

Abstract: The present invention relates to processes for the preparation of (R)-1-(5-chloro-[1,1?-biphenyl]-2-yl)-2,2,2-trifluoroethanol, 1-(5-chloro-[1,1?-biphenyl]-2-yl)-2,2,2-trifluoroethanone, and intermediates thereof, which are useful in the preparation of inhibitors of TPH1 for the treatment of, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, low bone mass diseases, serotonin syndrome, and cancer.

Abstract: There is a crystalline compound of (S)-ethyl 8-(2-amino-6-((R)-1-(5-chloro-[1,1?-biphenyl]-2-yl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-3-carboxylate that exhibits an XRPD pattern having a characteristic peak at 19.05±0.20 (° 2?). There is also a pharmaceutical composition containing the compound. There is also a dosage form containing the crystalline compound and one or more pharmaceutically acceptable excipients. There is also a method for crystallizing/recrystallizing the compound. There is also a method for treating or preventing a disease with the compound.

Abstract: The present invention relates to processes for the preparation of (R)-1-(5-chloro-[1,1?-biphenyl]-2-yl)-2,2,2-trifluoroethanol, 1-(5-chloro-[1,1?-biphenyl]-2-yl)-2,2,2-trifluoroethanone, and intermediates thereof, which are useful in the preparation of inhibitors of TPH1 for the treatment of, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, low bone mass diseases, serotonin syndrome, and cancer.

Abstract: The present invention is directed to spirocyclic compounds which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPH1), that are useful in the treatment of diseases or disorders associated with peripheral serotonin including, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, and low bone mass diseases, as well as serotonin syndrome, and cancer.

Abstract: The present invention is directed to spirocyclic compounds which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPH1), that are useful in the treatment of diseases or disorders associated with peripheral serotonin including, for example, gastrointestinal, cardiovascular, pulmonary, inflammatory, metabolic, and low bone mass diseases, as well as serotonin syndrome, and cancer.