| Patent Number |
Title Of Patent |
Date Issued |
| 5416204 |
Method for preparing 2'-3'-dideoxy-.beta.-nucleosides using 2,2-dideoxy-di(organothio)-pentofura |
May 16, 1995 |
| 2,3-Dideoxy-2,2-di(organothio)-B-D-pentofuranosyl-pyrimidines are disclosed as intermediates in the synthesis of 2', 3'-dideoxynucleosides and have the structure shown below. ##STR1## wherein R.sup.4 is a hydroxyl protecting group;X is oxygen or nitrogen, said nitrogen being bonded t |
| 5264561 |
Method of manufacturing 2',3'-dideoxy-2',3'-didehydronucleosides |
November 23, 1993 |
| The instant invention is drawn to a method for manufacturing 2',3'-dideoxy-2',3'-didehydronucleoside compounds by reacting a ribonucleoside derivative wherein the hydroxyl in the 5'-position of the furanose ring of said ribonucleoside is protected by a silyl protective group, with an |
| 5262531 |
Process for preparing 2'-deoxy-.beta.-adenosine |
November 16, 1993 |
| 2'-deoxy-.beta.-adenosine can be industrially and easily obtained without using expensive or dangerous materials by the process of the present invention, which comprises the steps of: preparing a salt of adenine from adenine, allowing to condense the salt with a derivative of pentofurano |
| 5204383 |
Dental adhesives |
April 20, 1993 |
| According to the present invention, a dental adhesive comprising glyceryl mono(meth)acrylate and a polymerizable monomer having at least one olefinic double bond and capable of copolymerizing with said glyceryl mono(meth)acrylate is provided. |
| 5166327 |
Process for producing 3'-deoxy-3-'-fluorothymidine |
November 24, 1992 |
| This invention provides a process for producing 3'-deoxy-'-fluorothymidine, which comprises allowing 3'-deoxy-'-fluoro-5'-mesylthymidine (the stating material) to react with an acetylating agent, selected from the group consisting of alkali metal salts of acetic acid, amine salts of acet |
| 5112994 |
Method of producing (S)-4-hydroxymethyl-.gamma.-lactone |
May 12, 1992 |
| (S)-4-hydroxymethyl-.gamma.-lactone is prepared by oxidizing dihydrolevoglucosenone with a peracid in an organic solvent. (S)-4-hydroxymethyl-.gamma.-lactone is prepared from levoglucosenone. First, levoglucosenone is catalytic hydrogenated, thereby dihydrolevoglucosenone is obtained |
| 5006646 |
Process for preparing 2'-deoxy-5-trifluoromethyl-beta-uridine |
April 9, 1991 |
| The present invention is a process for preparing 2'-deoxy-5-trifluoromethyl-.beta.uridine characterized in that a 5-trifluoromethyl-2,4-bis(triorganosilyloxy)pyrimidine and a 1-halogeno-2-deoxy-.alpha.-D-erythro-pentofuranose derivative are subjected to condensation reaction in chlor |
| 4994585 |
Method of preparing (S)-.gamma.-hydroxymethyl-.alpha., .beta.-butenolide |
February 19, 1991 |
| A method of preparing (S)-.gamma.-hydroxymethyl-.alpha.,.beta.-butenolide includes the step of oxidizing a levoglucosenone with a peracid in an organic solvent. Peracetic acid, metha-chloroperbenzoic acid or magnesium monoperoxyphthalate hexahydrate can be used as the peracid. According |
