Methods of preparation of lysergic acid and derivatives thereof. Methods of using lysergic acid and derivatives thereof, such as methods of treating neurodegenerative disorders. Derivatives of lysergic acid and pharmaceutically acceptable salts thereof.

Methods of preparation of lysergic acid and derivatives thereof. Methods of using lysergic acid and derivatives thereof, such as methods of treating neurodegenerative disorders. Derivatives of lysergic acid and pharmaceutically acceptable salts thereof.

Provided herein are novel lisuride compounds, processes for their preparation, compositions comprising said compounds, and use in therapy. More particularly, the present disclosure relates to fluorinated and/or deuterated analog useful in the treatment of diseases, disorders or conditions treatable by modulating ther 5-HT2 receptor subtypes.

A compound, or a pharmaceutically acceptable salt thereof, of formula I:

##STR00001## wherein R.sup.1, R.sup.8, R.sup.9, R.sup.31, R.sup.32, R.sup.33, and R.sup.34 are each independently H, C.sub.1-C.sub.6 alkyl, or substituted C.sub.1-C.sub.6 alkyl; and R.sup.2, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are each independently H, F, Cl, Br, OR.sup.1NR.sup.8R.sup.9, C.sub.1-C.sub.6 alkyl, or substituted C.sub.1-C.sub.6 alkyl.

The invention provides compounds of formula I: ##STR00001##
wherein R.sup.1-R.sup.4 have any of the values defined in the specification, and salts thereof. The compounds are useful as dopamine receptor modulators for the treatment of diseases where modulation of dopamine receptors is implicated (e.g. sexual dysfunction, prolactinoma, Parkinson's disease, and Cushings disease).

The invention provides compounds of formula I: ##STR00001##
wherein R.sup.1-R.sup.4 have any of the values defined in the specification, and salts thereof. The compounds are useful as dopamine receptor modulators for the treatment of diseases where modulation of dopamine receptors is implicated (e.g. sexual dysfunction, prolactinoma, Parkinson's disease, and Cushings disease).

Provided herein are ergoline compounds and pharmaceutical compositions thereof. In some embodiments, provided herein are methods of treatment, prevention, or amelioration of a variety of medical disorders such as, for example, migraine using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of agonizing receptors such as, for example, the 5-HT.sub.1A, 5-HT.sub.1B and 5-HT.sub.1D receptors without agonizing the 5-HT.sub.2B receptor using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of antagonizing the 5-HT.sub.2B adrenergic alpha.sub.2A and/or the alpha.sub.2B receptors using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of antagonizing the D2 and D3 receptor using the compounds and pharmaceutical compositions disclosed herein.

Embodiments include therapeutic small molecules for use in treating addiction and neurological disorder by stimulating neuroplasticity. The therapeutic small molecule can increase neuroplasticity and improve neural function by affecting upstream regulators of FOS, JUN, BDNF, CDC42 and CCL2. The therapeutic small molecule can also aid in reduction of Amyloid plaques via binding with amyloid beta (a4).

Embodiments include therapeutic small molecules for use in treating addiction and neurological disorder by stimulating neuroplasticity. The therapeutic small molecule can increase neuroplasticity and improve neural function by affecting upstream regulators of FOS, JUN, BDNF, CDC42 and CCL2. The therapeutic small molecule can also aid in reduction of Amyloid plaques via binding with amyloid beta (a4).