Ethylenediamine → 9-((1R,2S,3R,4S)-2,3-Dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purine-2-carboxylic acid (2-amino-ethyl)-amide

HRID 2382430Notes

Reaction equation

C[O:2][C:3]([C:5]1[N:13]=[C:12]2[C:8]([N:9]=[CH:10][N:11]2[C@@H:14]2[CH2:18][C@H:17]([NH:19][C:20](=[O:23])[CH2:21][CH3:22])[C@@H:16]([OH:24])[C@H:15]2[OH:25])=[C:7]([NH:26][CH2:27][CH:28]([C:35]2[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=2)[C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[N:6]=1)=O.[CH2:41]([NH2:44])[CH2:42][NH2:43]>>[NH2:43][CH2:42][CH2:41][NH:44][C:3]([C:5]1[N:13]=[C:12]2[C:8]([N:9]=[CH:10][N:11]2[C@@H:14]2[CH2:18][C@H:17]([NH:19][C:20](=[O:23])[CH2:21][CH3:22])[C@@H:16]([OH:24])[C@H:15]2[OH:25])=[C:7]([NH:26][CH2:27][CH:28]([C:35]2[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=2)[C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=2)[N:6]=1)=[O:2]

Participants

Reactant 2

HCID 3301Ethylenediamine

HCID 666297129-((1R,2S,3R,4S)-2,3-Dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purine-2-carboxylic acid methyl ester

Product 1

HCID 666297619-((1R,2S,3R,4S)-2,3-Dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purine-2-carboxylic acid (2-amino-ethyl)-amide

Conditions

Temperature: 105 °C

Procedure

9-((1R,2S,3R,4S)-2,3-Dihydroxy-4-propionylamino-cyclopentyl)-6-(2,2-diphenyl-ethylamino)-9H-purine-2-carboxylic acid methyl ester (62 mg, 1.0 mmol) is dissolved in ethylene diamine (3.4 ml, 51 mmol) and the solution is stirred at 105° C. The reaction is shown to be complete by LCMS after 45 minutes. The reaction mixture is concentrated in vacuo and the title compound is obtained after purification by reverse phase column chromatography (Isolute™ C18, 0-100% acetonitrile in water). MS (ES+) m/e 573.4 (MH+).

Workup

concentrationThe reaction mixture is concentrated in vacuo

Sources & evidence

ORD record: ord-e0b5212af4a846cb85fc02c23bb3c0e5
Source dataset: uspto-grants-2012_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08258141B2

Reaction notes

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