Abstract: The invention relates to 5-HT receptor modulators, particularly 5-HT2B antagonists. Novel piperidinylamino-thieno [2,3-d] pyrimidine compounds represented by Formula I, II and III, and uses thereof for treating conditions including pulmonary arterial hypertension, congestive heart failure, and hypertension.

Abstract: The invention relates to 5-HT receptor antagonists. Novel piperidinylamino-thieno [2,3-d]pyrimidine compounds represented by Formula I, and synthesis and uses thereof for treating diseases mediated directly or indirectly by 5-HT receptors, are disclosed. Such conditions include central nervous system disorders such as pulmonary arterial hypertension, migraine, hypertension, disorders of the gastrointestinal tract, restenosis, asthma, obstructive airway disease, prostatic hyperplasia and priapism, anxiety, depression, schizophrenia, neural injury and stroke. Methods of preparation and novel intermediates and pharmaceutical salts thereof are also provided.

Abstract: The invention relates to 5-HT receptor antagonists. Novel piperidinylamino-thieno[2,3-d]pyrimidine compounds represented by Formula I, and synthesis and uses thereof for treating diseases mediated directly or indirectly by 5-HT receptors, are disclosed. Such conditions include central nervous system disorders such as anxiety, depression, schizophrenia, neural injury, stroke, and migraine. Methods of preparation and novel intermediates and pharmaceutical salts thereof are also included.

Abstract: The invention relates to 5-HT receptor agonists or antagonists. Novel arylpiperazinyl sulfonamide compounds represented by Formula I, and synthesis and uses thereof for treating diseases including those mediated directly or indirectly by 5-HT receptors, are disclosed. Such conditions include central nervous system disorders such as generalized anxiety disorder, ADD/ADHD, neural injury, stroke, and migraine. Methods of preparation and novel intermediates and pharmaceutical salts thereof are also included.

Abstract: The invention discloses tachykinin receptor antagonists. The tachykinin family of receptors comprising the neurokinins substance P (SP), neurokinin A, and neurokinin B and related neuropeptides that are widely distributed in the peripheral and central nervous system. The invention discloses novel aminopyrimidine derivatives, synthesis and uses thereof for the treatment of diseases mediated directly or indirectly by the tachykinin receptors. These diseases include central nervous system disorders such as anxiety, pain, depression, emesis, in particular cancer chemotherapy induced emesis, respiratory and inflammatory bowel disease and other gastric disorders, asthma, schizophrenia, ophthalmic diseases such as glaucoma, ocular hypotension, neural injury, stroke, cardiac disorders, psoriasis, and migraine. Methods of preparation and novel intermediates and pharmaceutical salts thereof are also included.