Abstract: Amorphous and polymorphic of palonosetron hydrochloride are disclosed that can be characterized by X-ray powder diffraction patterns, thermal properties, purity and methods of manufacture. These forms of palonosetron hydrochloride can be produced from solution or by solid state interconversions. The forms can be used in pharmaceutical formulations: particularly preferred uses of these formulations are in prevention and treatment of nausea and emesis arising from chemotherapy or postoperative side effects. The forms can optionally be used as mixtures of the crystalline and/or amorphous forms.

Abstract: Amorphous and polymorphic of palonosetron hydrochloride are disclosed that can be characterized by X-ray powder diffraction patterns, thermal properties, purity and methods of manufacture. These forms of palonosetron hydrochloride can be produced from solution or by solid state interconversions. The forms can be used in pharmaceutical formulations: particularly preferred uses of these formulations are in prevention and treatment of nausea and emesis arising from chemotherapy or postoperative side effects. The forms can optionally be used as mixtures of the crystalline and/or amorphous forms.

Abstract: Amorphous and polymorphic of palonosetron hydrochloride are disclosed that can be characterized by X-ray powder diffraction patterns, thermal properties, purity and methods of manufacture. These forms of palonosetron hydrochloride can be produced from solution or by solid state interconversions. The forms can be used in pharmaceutical formulations: particularly preferred uses of these formulations are in prevention and treatment of nausea and emesis arising from chemotherapy or postoperative side effects. The forms can optionally be used as mixtures of the crystalline and/or amorphous forms.

Abstract: Provided are metabolites of palonosetron that can be used in treating animals, particularly humans, of the formula (I): or a pharmaceutically acceptable salt or prodrug thereof; wherein R1 and R4 independently can be H, hydroxyl, or carbonyl; and wherein R3 can be Formule (II) or Formule (III).

Abstract: Amorphous and polymorphic of palonosetron hydrochloride are disclosed that can be characterized by X-ray powder diffraction patterns, thermal properties, purity and methods of manufacture. These forms of palonosetron hydrochloride can be produced from solution or by solid state interconversions. The forms can be used in pharmaceutical formulations: particularly preferred uses of these formulations are in prevention and treatment of nausea and emesis arising from chemotherapy or postoperative side effects. The forms can optionally be used as mixtures of the crystalline and/or amorphous forms.

Abstract: A process for the preparation of 13-cis-retinoic acid (I) from 3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl)-triphenylphosphonium chloride (IIa) and 5-hydroxy-4-methyl-2(5H)-furanone (III) is herein disclosed. Compounds (IIa) and (III) are reacted in ethanol as the solvent and KOH as the base at a temperature ranging from ?5 to 0° C. to give a mixture of retinoic acids which is isomerized to (I) by treatment with a palladium complex.

Abstract: A process for the preparation of 13-cis-retinoic acid (I) from 3-methyl-5-(2,6,6-trimethyl-1-cyclohexan-1-yl)-2,4-pentadienyl)-triphenylphosphonium chloride (IIa) and 5-hydroxy-4-methyl-2(5H)-furanone (III) is herein disclosed. Compounds (IIa) and (III) are reacted in ethanol as the solvent and KOH as the base at a temperature ranging from ?5 to 0° C. to give a mixture of retinoic acids which is isomerised to (I) by treatment with a palladium complex.