Abstract:
The present invention relates to an industrially advantageous process for the preparation of beta-ionylidencacetaldehyde of structural Formula I, which is a key intermediate for the synthesis of vitamin A and related compounds such as tretinoin and isotretinoin.
Abstract:
The present invention relates to a new and industrially advantageous process for the preparation of 3-ethoxy-4-ethoxy-carbonyl-phenyl acetic acid. This compound is a key intermediate for the synthesis of Repaglinide, an oral hypoglycemic agent.
Abstract:
A multistep process for producing 8-chloro-6-(2-fluorophenyl)-1-methyl-4-H-imidazo�1,5a!�1,4!benzodiazepine (midazolam) comprises treating a compound of Formula II with a lower alkyl dithiol to produce a compound of Formula III, wherein n=2 or 3, converting the compound of Formula III to a compound of Formula VII, and then treating the compound of Formula VII with a deprotecting agent, thereby producing midazolam. Novel intermediate compounds are also disclosed.
Abstract:
A process for the manufacture of Form 1 ranitidine hydrochloride (N-[2-[[[5-(Dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl-N'-methyl-2-nitro-1,1-ethenediamine) hydrochloride, is described. A process to convert ranitidine hydrochloride Form 2 to Form 1 is also described.
Abstract:
Apparatus for pouring molten metal comprises a cold crucible 15 which has a recess adjacent its top and a pouring spout 16 positioned in the recess just below the level of the surface of the melt. The recess defines a lip above the spout which helps to ensure that there is a constant pressure head above the spout. Pivotally mounted on the lip, and biased to assume a horizontal position irrespective of the angle of tilt of the crucible is an induction coil 21. The coil induces currents in the surface of the melt and thereby moves the dross away from the pouring spout. The crucible 15 pours into a constant head hopper 22 and the opening and closing of the crucible pouring spout 16 and the angle of tilt of the crucible are controlled to ensure constant pressure head in the hopper.
Abstract:
The invention provides small molecule modulators of retinoic acid receptor-related orphan receptors such as RORα, RORβ, or RORγ. Compounds of the invention can be effective modulators at concentrations ineffective to act on LXR receptors, or on other nuclear receptors, or other biological targets. Methods of modulation the RORs and methods of treating metabolic disorders, immune disorders, cancer, and CNS disorders wherein modulation of an ROR is medically indicated are also provided.
Abstract:
Compounds of Formula (I), wherein represents a single bond when G is —OH and double bond when G is —O; R1 and R2 are independently selected from hydrogen, alkyl, alkenyl, alkynyl, aralkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, heterocyclylalkyl or heteroarylalkyl; R3 is selected from the group selected from hydrogen, hydroxy, alkoxy, alkenyloxy or alkynyloxy; X is selected from oxygen, —NH, —NR (wherein R is alkyl, alkenyl, alkenyl, alkynyl or aryl), sulphur or no atom; Het is heterocyclyl or heteroaryl; n is an integer from 1 to 6; are muscarinic receptor antagonists, which are useful, among other uses, for the treatment of various diseases of the respiratory, urinary and 4 i gastrointestinal systems mediated through muscarinic receptors.
Abstract translation:式(I)的化合物,当G为-OH时,当G为-O时,表示单键; R 1和R 2独立地选自氢,烷基,烯基,炔基,芳烷基,环烷基,芳基,杂芳基,杂环基,杂环基烷基或杂芳基烷基; R3选自氢,羟基,烷氧基,烯氧基或炔氧基; X选自氧,-NH,-NR(其中R是烷基,烯基,烯基,炔基或芳基),硫或无原子; Het是杂环基或杂芳基; n是1至6的整数; 是毒蕈碱受体拮抗剂,其可用于治疗通过毒蕈碱受体介导的呼吸,尿和4I胃肠系统的各种疾病,以及其它用途。
Abstract:
The present invention generally relates to muscarinic receptor antagonists, which are useful, among other uses, for the treatment of various diseases of the respiratory, urinary and gastrointestinal systems mediated through muscarinic receptors. The present invention also relates to processes for preparing compounds described herein, pharmaceutical compositions thereof, and methods for treating diseases mediated through muscarinic receptors. Formula (I) or a pharmaceutically accepted salt, pharmaceutically acceptable solvate, enantiomers, diastereomer, polymorph or N-oxide thereof, wherein X is.
Abstract:
The present invention generally relates to muscarinic receptor antagonists, which are useful for treating various diseases of the respiratory, urinary and gastrointestinal systems mediated through muscarinic receptors. The invention also relates to processes for preparing compounds described herein, pharmaceutical compositions containing the disclosed compounds, and the methods for treating diseases mediated through muscarinic receptors.