In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

The disclosure provides salts of (2R,6R)-hydroxynorketamine (HNK), wherein the salt is with an organic acid chosen from malonic acid, salicylic acid, ethane sulfonic acid, glycolic acid, stearic acid, or capric acid, and their crystal forms.

The disclosure provides salts of (2R,6R)-hydroxynorketamine (HNK), wherein the salt is with an organic acid chosen from malonic acid, salicylic acid, ethane sulfonic acid, glycolic acid, stearic acid, or capric acid, and their crystal forms.

The invention relates to the compounds or its pharmaceutical acceptable polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising an effective amount of compounds of formula I, formula II and formula III and the methods for the treatment of neurological diseases may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, lozenge, spray, intravenous, oral solution, nasal spray, oral solution, suspension, oral spray, buccal mucosal layer tablet, parenteral administration, syrup, or injection. Such compositions may be used to treatment of neurological diseases.

In an embodiment of the invention, a composition for treating a cell population comprises a medicant. The medicant moiety can be an illudofulvene analog. In an embodiment of the invention, a composition for treating a cell population comprises an Affinity Medicant Conjugate (AMC). The affinity moiety can be an antibody, an antibody fragment, a receptor protein, a peptidic growth factor, an anti-angiogenic protein, a specific binding peptide, protease cleavable peptide, a glycopeptide, a peptide, a peptidic toxin, a protein toxin and an oligonucleotide. The affinity moiety can be covalently bound to the medicant via a linker.

The disclosure provides a method for synthesizing free base forms of (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine. In an embodiment synthesis of (2R,6R)-hydroxynorketamine (HNK) includes preparation of (R)-norketamine via chiral resolution from racemic norketamine via a chiral resolution with L-pyroglutamic acid. The disclosure also provided crystal forms of the corresponding (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine hydrochloride salts.

The disclosure provides a method for synthesizing free base forms of (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine. In an embodiment synthesis of (2R,6R)-hydroxynorketamine (HNK) includes preparation of (R)-norketamine via chiral resolution from racemic norketamine via a chiral resolution with L-pyroglutamic acid. The disclosure also provided crystal forms of the corresponding (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine hydrochloride salts.

The disclosure provides a method for synthesizing free base forms of (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine. In an embodiment synthesis of (2R,6R)-hydroxynorketamine (HNK) includes preparation of (R)-norketamine via chiral resolution from racemic norketamine via a chiral resolution with L-pyroglutamic acid. The disclosure also provided crystal forms of the corresponding (2R,6R)-hydroxynorketamine (HNK) and (2S,6S)-hydroxynorketamine hydrochloride salts.

The present invention is directed to novel neuro-attenuating norketamine (NANKET) compounds according to any one of formulas (I—shown below), (I-A) and (I-B), or any of the compounds described in Tables A-D, or in any of the Examples provided herein, and pharmaceutically acceptable salts thereof, novel pharmaceutical formulations and novel methods of uses thereof. The present invention also features novel oral neuro-attenuating ketamine (NAKET) and neuro-attenuating norketamine (NANKET) modified-release pharmaceutical formulations, and novel methods of administration thereof, which ensure the steady release of a therapeutically effective amount of ketamine, norketamine, or derivatives thereof from the oral modified-release pharmaceutical formulations without neurologically toxic spikes in plasma concentration of the ketamine, norketamine, or derivatives during the release periods. ##STR00001##

The present invention is directed to novel neuro-attenuating norketamine (NANKET) compounds according to any one of formulas (I—shown below), (I-A) and (I-B), or any of the compounds described in Tables A-D, or in any of the Examples provided herein, and pharmaceutically acceptable salts thereof, novel pharmaceutical formulations and novel methods of uses thereof. The present invention also features novel oral neuro-attenuating ketamine (NAKET) and neuro-attenuating norketamine (NANKET) modified-release pharmaceutical formulations, and novel methods of administration thereof, which ensure the steady release of a therapeutically effective amount of ketamine, norketamine, or derivatives thereof from the oral modified-release pharmaceutical formulations without neurologically toxic spikes in plasma concentration of the ketamine, norketamine, or derivatives during the release periods. ##STR00001##