Diethyl squarate → Tert-butyl 30-[(2-ethoxy-3,4-dioxo-1-cyclobuten-1-yl)amino]-15-oxo-4,7,10,21,24,27-hexaoxa-14,17-diazatriacont-1-ylcarbamate

HRID 504971Notes

Reaction equation

HRID 504971 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][O:5][CH2:6][CH2:7][O:8][CH2:9][CH2:10][O:11][CH2:12][CH2:13][CH2:14][NH:15][CH2:16][C:17](=[O:40])[NH:18][CH2:19][CH2:20][CH2:21][O:22][CH2:23][CH2:24][O:25][CH2:26][CH2:27][O:28][CH2:29][CH2:30][CH2:31][NH:32][C:33](=[O:39])[O:34][C:35]([CH3:38])([CH3:37])[CH3:36].[CH2:41]([O:43][C:44]1[C:45](=O)[C:46](=[O:51])[C:47]=1[O:48]CC)[CH3:42]>C(Cl)Cl>[CH2:41]([O:43][C:44]1[C:47](=[O:48])[C:46](=[O:51])[C:45]=1[NH:1][CH2:2][CH2:3][CH2:4][O:5][CH2:6][CH2:7][O:8][CH2:9][CH2:10][O:11][CH2:12][CH2:13][CH2:14][NH:15][CH2:16][C:17](=[O:40])[NH:18][CH2:19][CH2:20][CH2:21][O:22][CH2:23][CH2:24][O:25][CH2:26][CH2:27][O:28][CH2:29][CH2:30][CH2:31][NH:32][C:33](=[O:39])[O:34][C:35]([CH3:36])([CH3:37])[CH3:38])[CH3:42]

Participants

4

Reactant 2

HCID 123228Diethyl squarateHCID 86647725Tert-butyl 30-amino-15-oxo-4,7,10,21,24,27-hexaoxa-14,17-diazatriacont-1-ylcarbamate

Product 1

HCID 86647727Tert-butyl 30-[(2-ethoxy-3,4-dioxo-1-cyclobuten-1-yl)amino]-15-oxo-4,7,10,21,24,27-hexaoxa-14,17-diazatriacont-1-ylcarbamate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

0.25 g of tert-butyl 30-amino-15-oxo-4,7,10,21,24,27-hexaoxa-14,17-diazatriacont-1-ylcarbamate is dissolved in 1.5 ml of CH2Cl2. 57.5 μl of 3,4-diethoxy-3-cyclobutene-1,2-dione are added.

Sources & evidence

ORD record
ord-427ad66547e5487c839f4a7a313f1fd6
Source dataset
uspto-grants-2010_08
Patent number
US07780953B2

Reaction notes

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