| Patent Number |
Title Of Patent |
Date Issued |
| 7553987 |
Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof |
June 30, 2009 |
| This application discloses provides a process for the introduction of nitro-group functionality into a compound which contains also a site of unsaturation and/or oxygen functionality by direct (one step) oxidation of an oxime functional group mediated by a molybdenum VI/VII peroxo co |
| 7541471 |
Synthesis of himbacine analogs |
June 2, 2009 |
| The present invention relates to an improved process for preparing himbacine analogs. The compounds are useful as thrombin receptor antagonists. The improved process may allow for at least one of easier purification by crystallization, easier scalability, and improved process yield o |
| 6207822 |
Process for the synthesis of azetidinones |
March 27, 2001 |
| This invention provides a process for preparing the hypocholesterolemic compound ##STR1##comprising:(a) reacting p-fluorobenzoylbutyric acid with pivaloyl chloride and acylating the product with a chiral auxiliary to obtain a ketone of formula IV: ##STR2##(b) reducing the ketone |
| 5539121 |
2-formylmercaptobenzothiazole |
July 23, 1996 |
| There is disclosed a novel formylating agent, 2-formylmercaptobenzothiazole. |
| 5442047 |
Process for preparing isepamicin |
August 15, 1995 |
| An improved process for converting gentamicin B to isepamicin comprising forming 3,6'-di-N-formylgentamicin B, acylating the 1-amino group with an N-protected (S)-isoserine compound and removing all the blocking groups under conditions which result in high yields of isepamicin. A novel |
| 4831123 |
Process for preparing netilmicin |
May 16, 1989 |
| A high yielding process for converting 3,2',6'-tri-N-acetyl sisomicin to netilmicin comprising the step of silylating the starting material at the 5,2' positions, and optionally at the 4' position, converting the 1-amino substituent to a 1-N-imino substituent, converting the imino to an |
| 4634556 |
Crystalline sodium (5R, 6S, 8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyla |
January 6, 1987 |
| A novel, stable, crystalline sodium (5R,6S,8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyl ate (designated as Form II) is prepared by forming a homogenous solution of sodium (5R,6S,8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyl ate combined |
