Benzylamine → HCID 69585919, compound

HRID 1242068Notes

Reaction equation

HRID 1242068 reaction equation
[C:1]([O:5][C:6]([C:8]1[C:16]2[CH2:15][CH:14]([C:17]([OH:19])=O)[O:13][CH2:12][C:11]=2[S:10][C:9]=1[NH2:20])=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.CN(C)CCCN=C=NCC.[CH2:33]([NH2:40])[C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1.N1C(C)=CC=CC=1C>ClCCl>[C:1]([O:5][C:6]([C:8]1[C:16]2[CH2:15][CH:14]([C:17](=[O:19])[NH:40][CH2:33][C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)[O:13][CH2:12][C:11]=2[S:10][C:9]=1[NH2:20])=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

6

Reactant 4

HCID 7504BenzylamineHCID 79372,6-LutidineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 69586001HCID 69586001, compound

Product 1

HCID 69585919HCID 69585919, compoundYield 56%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-amino-4,7-dihydro-5H-thieno[2,3-c]pyran-3,5-dicarboxylic acid 3-tert-butyl ester (101 mg, 0.34 mmol, prepared in Example 31) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (78 mg, 0.41 mmol) in distilled dichloromethane (4 ml) under nitrogen was added benzylamine (40 μl, 0.37 mmol) followed by 2,6-lutidine (0.12 ml, 1.02 mmol). The reaction was stirred for 72 h., concentrated in vacuo and reconstituted in ethyl acetate (30 ml). The organic layer was washed with 1% hydrochloric acid (10 ml), saturated sodium bicarbonate (10 ml), brine (10 ml), dried (Na2SO4) over sodium sulfate, filtered, and the solvent evaporated in vacuo to give 72 mg (56%) of 2-amino-5-benzylcarbamoyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylic acid tert-butyl ester.

Workup

  1. concentrationconcentrated in vacuo
  2. washThe organic layer was washed with 1% hydrochloric acid (10 ml), saturated sodium bicarbonate (10 ml), brine (10 ml)
  3. dry with materialdried (Na2SO4) over sodium sulfate
  4. filtrationfiltered
  5. customthe solvent evaporated in vacuo

Sources & evidence

ORD record
ord-fe8504971e7b4bd7a5f7f740d21183e3
Source dataset
uspto-grants-2006_10
Patent number
US07115624B1

Reaction notes

Loading…