Triethylamine → 1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-L-phenylalanylamino)-beta-D-ribofuranuronic acid

HRID 1633277Notes

Reaction equation

HRID 1633277 reaction equation
[NH2:1][C@@H:2]1[C@@H:6]([C:7]([OH:9])=[O:8])[O:5][C@@H:4]([N:10]2[CH:18]=[N:17][C:16]3[C:11]2=[N:12][CH:13]=[N:14][C:15]=3[NH:19][C:20](=[O:27])[C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[C@@H:3]1[OH:28].C(N(CC)CC)C.[CH2:36]([O:43][C:44]([NH:46][C@H:47]([C:55](O)=[O:56])[CH2:48][C:49]1[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=1)=[O:45])[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1>O.O1CCCC1>[C:20]([NH:19][C:15]1[N:14]=[CH:13][N:12]=[C:11]2[C:16]=1[N:17]=[CH:18][N:10]2[C@@H:4]1[O:5][C@H:6]([C:7]([OH:9])=[O:8])[C@@H:2]([NH:1][C:55](=[O:56])[C@H:47]([CH2:48][C:49]2[CH:50]=[CH:51][CH:52]=[CH:53][CH:54]=2)[NH:46][C:44]([O:43][CH2:36][C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)=[O:45])[C@H:3]1[OH:28])(=[O:27])[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 70878Benzyloxycarbonyl-L-phenylalanineHCID 538540083-amino-1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-beta-D-ribofuranuronic acid

Product 1

HCID 228282251-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-L-phenylalanylamino)-beta-D-ribofuranuronic acidYield 78.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-amino-β-D-ribofuranuronic acid (384 mg) prepared in Example 1 and triethylamine (0.19 ml) in water (10 ml) was added a solution of N-hydroxysuccinimide ester of N-benzyloxycarbonyl-L-phenylalanine (635 mg) in tetrahydrofuran (10 ml) at room temperature under stirring, which was continued overnight. The mixture was evaporated to remove tetrahydrofuran, acidified with 10% hydrochloric acid and extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate and evaporated to dryness. The residue was triturated in diethyl ether to give 1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-L-phenylalanylamino)-β-D-ribofuranuronic acid (521 mg), mp. 145°-150° C. (dec.).

Workup

  1. customThe mixture was evaporated
  2. customto remove tetrahydrofuran
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with brine
  5. dry with materialdried over magnesium sulfate
  6. customevaporated to dryness
  7. customThe residue was triturated in diethyl ether

Sources & evidence

ORD record
ord-4fab12985c5a45fcae2ab6a6b8dadb52
Source dataset
uspto-grants-1984_10
Patent number
US04479942

Reaction notes

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