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| № |
Patent number |
Title of the invention and abstract piece | Date of publication of the patent |
|---|---|---|---|
| 1 | IN190846A1 |
PROCESS FOR THE PREPARATION OF ISOTRETINOIN
The present invention relates to a process for the preparation of 13-cis isomer of Vitamin A acid, commonly known as isotretinoin, in a single step. |
23.08.2003 |
| 2 | IN190782A1 |
PROCESS FOR PREPARING ERYTHROMYCIN DERIVATIVE SUCHAS ROXITHROMYCIN FROM THE CORRESPONDING OXIME
A process for preparing an erythromycin derivative, such as roxithromycin, from the corresponding oxime is disclosed. The oxime is reacted with a metal alkoxide and results in improvements over prior art processes involving the oxime. Roxithromycin is a known anti-bacterial agent. |
23.08.2003 |
| 3 | IN190784A1 |
A PROCESS FOR THE PREPARATION OF PHOSPHOROTHIOATE TRIESTER
A process for the synthesis in solution phase of a phosphorothioate triester is provided. The process comprises the solution phase coupling of an H-phosphonate with an alcohol in the presence of a coupling agent to form an H-phosphonate diester. The H-phosphonate diester is oxidized in situ with a sulfur transfer agent to produce the phosphorothioate triester. Preferably, the H-phosphonate and alc... |
23.08.2003 |
| 4 | IN190836A1 |
AN IMPROVED PROCESS FOR THE PRODUCTION OF 4-ARYL-2BUTANOL FROM THE LEAVES OF TAXUS WALLICHIANA
The present invention provides a process for the production of two molecules of 4-aryl-2 butanols having the general formula 1 given below:Wherein R=H or glucose from the leaves of Taxus wallichiana, which comprises:(a) defatting air dried, pulverized leaves with aliphatic hydrocarbon solvents,(b) extracting the defatted leaves with chlorinated solvents and polar solvent successively at room tempe... |
23.08.2003 |
| 5 | ITMI20030065U1 |
ACCESSORIO PER L'ALIMENTAZIONE DI ACQUA FRESCA IN ELETTRODOMESTICI NEI QUALI PASSA ACQUA
The water supply unit for household appliances comprises an outer fabric hose which closely surrounds a corrugated inner hose consisting of a flexible plastic material. |
23.08.2003 |
| 6 | ITTO20020155A1 |
APPARECCHIATURA PER LA DIMOSTRAZIONE DI TECNICHE DI PITTURA MURALE. | 23.08.2003 |
| 7 | PE7132003A1 |
DERIVADOS BENZOTIAZOL DE NICOTINA O ISONICOTINA
DERIVADOS BENZOTIAZOL DE NICOTINA O ISONICOTINA DE FORMULA IA O IB DONDE R1 ES FENILO, PIPERIDIN-1-ILO, MORFOLINILO; A ES O; R ES -(CH2)n-N(R'')-C(O)-ALQUILO, -(CH2)n-O-ALQUILO-, -(CH2)n-O-(CH2)n-O-ALQUILO, (CH2)n-MORFOLINILO, ENTRE OTROS; A ES -N(R')-; R ES ALQUILO, CICLOALQUILO C4-C6; -(CH2)n-O-ALQUILO, -(CH2)n-PIRIDINILO, -(CH2)n-PIPERIDINILO, -(CH2)n-FENILO, ENTRE OTROS; R' Y R'' SON H, ALQUIL... |
23.08.2003 |
| 8 | IN190803A1 |
A PROCESS FOR PRODUCING FORMYLIMIDAZOLES
A new process for the catalytic conversion of hydroxymethyl imidazoles to formylimidazoles is described. The reaction takes place in the presence of a peroxide. Formylimidazoles are important intermediate products for pharmaceutical substances. |
23.08.2003 |