Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinoI and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinoI composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinoI and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinoI composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinoI composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinoI having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinoI and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinoI composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinoI composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinoI having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9)-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: The present invention provides polymorphic forms of aliskiren hemifumarate, and processes for preparation thereof and for the preparation of the amorphous form of aliskiren hemifumarate. The present invention also provides pharmaceutical compositions comprising the aliskiren hemifumarate crystalline forms T1, T3 or T4, T5, T6, T7, T8 and at least one pharmaceutically acceptable excipient, and the use of these pharmaceutical compositions in the treatment of hypertension.

Abstract: Methods for making trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(?)-?9-tetrahydrocannabinol composition is prepared by allowing a composition comprising (±)-?9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(?)-?9-tetrahydrocannabinol composition comprising at least about 99% by weight of trans-(?)-?9-tetrahydrocannabinol based on the total amount of trans-(?)-?9-tetrahydrocannabinol and trans-(+)-?9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(?)-?9-tetrahydrocannabinol having a purity of at least about 98% based on the total weight of cannabinoids.

Abstract: Intermediate compounds in the synthesis of Sitagliptin, 3-amino-4-(2,4,5-trifluorophenyl)but-2-enoic acid alkyl ester, and amino protected-3-amino-4-(2,4,5-trifluorophenyl)but-2-enoic acid alkyl ester, and the stereoselective reduction of these compound to give Synthon I, or the amino-protected Synthon I, are provided.

Abstract: The invention provides a novel process for the preparation of prostaglandins and analogues thereof, and new crystalline intermediates in the process.

Abstract: The present invention provides a new and effective process for the synthesis of 17-phenyl-18,19,20-trinor-PGF2? and its derivatives, including the anti-glaucoma drugs Bimatoprost and Latanoprost. The benefit of the present invention rises inter alia from the fact that a major intermediate involved in the synthesis of the above compounds may be isolated from a mixture containing also an undesired isomer, by crystallization. In addition, the undesired isomer may be oxidized to give the starting compound, which is then recycled.

Abstract: The invention encompasses processes for the synthesis of cilexetil trityl candesartan from the reaction of trityl candesartan with cilexetil halide in the presence of a base and a low boiling organic solvent. Optionally, the reaction may be conducted in the presence of a phase transfer catalyst.

Abstract: The present invention is directed to the preparation of substantially pure candesartan cilexetil by the deprotection of trityl candesartan cilexetil and crystallization and/or recrystallization of candesartan cilexetil.

Abstract: Provided are candesartan cilexetil forms and methods of their preparation. Also provided are pharmaceutical compositions prepared by combining at least one pharmaceutically-acceptable excipient with at least one candesartan cilexetil form of the invention.

Abstract: Disclosed is a process for production of highly pure donepezil hydrochloride in the form of polymorph I that does not involve the isolation of donepezil base. The disclosed process involves intramolecular cyclization of N-benzyl-2-(3,4-dimethoxybenzyl)-3-(4-piperidine)propionic acid followed by treatment with HCl.

Abstract: This invention provides a hydrochloride salt of torsemide. This invention further provides polymorphic forms of torsemide hydrochloride. Processes for preparing polymorphic forms of torsemide hydrochloride are also provided. This invention further provides a method for purifying crude torsemide or a salt thereof. Pharmaceutical composition comprising polymorphic forms of torsemide hydrochloride are also provided.

Abstract: The invention provides a novel process for the preparation of prostaglandins and analogues thereof, and new crystalline intermediates in the process.