Glycine → N-carboxymethyl-1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-O-methyl-L-tyrosylamino)-beta-D-ribofuranuronamide

HRID 1633303Notes

Reaction equation

HRID 1633303 reaction equation
[C:1]([NH:9][C:10]1[N:18]=[CH:17][N:16]=[C:15]2[C:11]=1[N:12]=[CH:13][N:14]2[C@@H:19]1[O:24][C@H:23]([C:25]([OH:27])=O)[C@@H:22]([NH:28][C:29](=[O:51])[C@H:30]([CH2:42][C:43]2[CH:48]=[CH:47][C:46]([O:49][CH3:50])=[CH:45][CH:44]=2)[NH:31][C:32]([O:34][CH2:35][C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)=[O:33])[C@H:20]1[OH:21])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:52][CH2:53][C:54]([OH:56])=[O:55].C(N(CC)CC)C>O1CCCC1.O>[C:54]([CH2:53][NH:52][C:25](=[O:27])[C@H:23]1[O:24][C@@H:19]([N:14]2[CH:13]=[N:12][C:11]3[C:15]2=[N:16][CH:17]=[N:18][C:10]=3[NH:9][C:1](=[O:8])[C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[C@H:20]([OH:21])[C@@H:22]1[NH:28][C:29](=[O:51])[C@H:30]([CH2:42][C:43]1[CH:44]=[CH:45][C:46]([O:49][CH3:50])=[CH:47][CH:48]=1)[NH:31][C:32]([O:34][CH2:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)=[O:33])([OH:56])=[O:55]

Participants

6

Reactant 3

HCID 750GlycineHCID 8471TriethylamineHCID 704659181-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-O-methyl-L-tyrosylamino)-beta-D-ribofuranuronic acid

Product 1

HCID 70505043N-carboxymethyl-1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-O-methyl-L-tyrosylamino)-beta-D-ribofuranuronamideYield 81.1%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of N-hydroxysuccinimide ester of 1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-O-methyl-L-tyrosylamino)-β-D-ribofuranuronic acid (295 mg) prepared in Example 53 (1) in tetrahydrofuran was added to a solution of glycine (30 mg) and triethylamine (0.085 ml) in water (5 ml). The mixture was stirred for 20 hours at room temperature and concentrated under reduced pressure to remove tetrahydrofuran. The aqueous solution was acidified with 1N hydrochloric acid and extracted with a mixed solvent (chloroform/ethanol=1/1). The extract was dried and evaporated to dryness. The residue was triturated in diethyl ether to give N-carboxymethyl-1-(6-benzoylamino-9H-purin-9-yl)-1,3-dideoxy-3-(N-benzyloxycarbonyl-O-methyl-L-tyrosylamino)-β-D-ribofuranuronamide (244 mg), mp. 122°-130° C. (dec.).

Workup

  1. concentrationconcentrated under reduced pressure
  2. customto remove tetrahydrofuran
  3. extractionextracted with a mixed solvent (chloroform/ethanol=1/1)
  4. customThe extract was dried
  5. customevaporated to dryness
  6. customThe residue was triturated in diethyl ether

Sources & evidence

ORD record
ord-86f18a1f12cc42458dda7899c03441b3
Source dataset
uspto-grants-1984_10
Patent number
US04479942

Reaction notes

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