| Patent Number |
Title Of Patent |
Date Issued |
| 7270992 |
Method of preparing 2-deoxyribose 5-phosphate |
September 18, 2007 |
| The present invention discloses a method of preparing 2-deoxyribose 5-phosphate by reacting glyceraldehyde 3-phosphate and acetaldehyde in the presence of either a microorganism itself which contains 2-deoxyribose-5-phosphate aldolase but substantially no phosphatase or the enzyme de |
| 7148042 |
Method of preparing a guanosine-group compound and an intermediate thereof |
December 12, 2006 |
| A glyoxal-guanosine-group compound is prepared either by reacting glyoxal-guanine with any one of ribose-1-phosphate and 2-deoxyribose-1-phosphate in the presence of purine nucleoside phosphorylase, or by reacting glyoxal-guanine with any one selected from the group consisting of uri |
| 7141397 |
Method of preparing a guanosine-group compound and an intermediate thereof |
November 28, 2006 |
| A glyoxal-guanosine-group compound is prepared either by reacting glyoxal-guanine with any one of ribose-1-phosphate and 2-deoxyribose-1-phosphate in the presence of purine nucleoside phosphorylase, or by reacting glyoxal-guanine with any one selected from the group consisting of uri |
| 7141396 |
Method of preparing a guanosine-group compound and an intermediate thereof |
November 28, 2006 |
| A glyoxal-guanosine-group compound is prepared either by reacting glyoxal-guanine with any one of ribose-1-phosphate and 2-deoxyribose-1-phosphate in the presence of purine nucleoside phosphorylase, or by reacting glyoxal-guanine with any one selected from the group consisting of uri |
| 6900326 |
Method of producing N-alkoxycarbonylpiperidine derivative, new compound as raw material therefor |
May 31, 2005 |
| A method of producing an N-alkoxycarbonylpiperidine derivative, comprising reacting an N-aralkylpiperidine derivative represented by the following general formula (1): ##STR1##wherein R.sup.1 represents an aralkyl group which may have a substituent, with a mesyl halide in the presenc |
| 6017736 |
Method of preparing purine nucleoside compound |
January 25, 2000 |
| The present invention provides a method of preparing stably and at a high yield a purine nucleoside compound by utilizing an exchange reaction of a nucleic acid base which is carried out in the presence of an enzyme, and also provides a microorganism capable of producing uracil thymine |
| 5932744 |
Process for the preparation of cis-hexahydroisoindoline derivatives |
August 3, 1999 |
| The instant invention provides a process for the industrial preparation of cis-hexahydroisoindoline derivatives in high yields and stereoselective manner. The instant invention relates to a process for the preparation of cis-hexahydroisoindoline derivative of formula II ##STR1## |
| 5861085 |
Method of purifying 1,3-bis(3-aminopropyl)-1,1,3,3-tetraorganodisiloxane |
January 19, 1999 |
| A method of purifying 1,3-bis(3-aminopropyl)-1,1,3,3-tetraorganodisiloxane represented by the formula (I) as described hereinbefore, which comprises recrystallizing a crude product of the compound as its acid addition salt, and then neutralizing the acid addition salt to obtain a purifie |
| 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 |
| 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 |
| 4727171 |
1,2,2-trimethyl-1-phenyl polydisilane and method for producing the same |
February 23, 1988 |
| A 1,2,2-trimethyl-1-phenylpolydisilane is prepared by condensating 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane in the presence of an alkali metal or alkali earth metal, in an aprotic solvent. This polymer is a viscous liquid which has a weight average molecular weight in the range of |
| 4727170 |
Dimethylphenylsilylmethylpolysilane and method for producing the same |
February 23, 1988 |
| A dimethylphenysilylmethylpolysilane is prepared by condensating 1,1-dichloro-1,2,2-trimethyl-2-phenyldisilane in the presence of an alkali metal or alkali earth metal, in an aprotic solvent. This polymer is a viscous liquid which has a weight average molecular weight in the range of |
| 4716240 |
1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane and method for producing the same |
December 29, 1987 |
| This invention relates to 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane expressed by the chemical formula (II),Cl(CH.sub.3).sub.2 SiSi(CH.sub.3)(C.sub.6 H.sub.5)Cl.This invention further relates to a method for producing 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane by reacting phenyl li |
| 4707557 |
1,1-dichloro-1,2,2-trimethyl-2-phenyldisilane and method for producing the same |
November 17, 1987 |
| This invention relates to a novel asymmetric 1,1-dichloro-1,2,2-trimethyl-2-phenyldisilane expressed by the chemical formula (I), (C.sub.6 H.sub.5) (CH.sub.3).sub.2 SiSi(CH.sub.3)Cl.sub.2.This invention further relates to a method for producing 1,1-dichloro-1,2,2-trimethyl-2-phenyl disil |
