Glycolic Acid → HCID 136358493, compound

HRID 601326Notes

Reaction equation

HRID 601326 reaction equation
[NH2:1][CH2:2][C:3]1[C:11]2[S:10](=[O:13])(=[O:12])[N:9]=[C:8]([C:14]3[C:15](=[O:32])[N:16]([CH2:25][C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[C:17]4[C:22]([C:23]=3[OH:24])=[CH:21][CH:20]=[CH:19][CH:18]=4)[NH:7][C:6]=2[S:5][CH:4]=1.C(N(CC)CC)C.[C:40](O)(=[O:43])[CH2:41][OH:42].Cl.CN(C)CCCN=C=NCC>CN(C)C=O.CN(C)C1C=CN=CC=1>[CH2:25]([N:16]1[C:17]2[C:22](=[CH:21][CH:20]=[CH:19][CH:18]=2)[C:23]([OH:24])=[C:14]([C:8]2[NH:7][C:6]3[S:5][CH:4]=[C:3]([CH2:2][NH:1][C:41](=[O:42])[CH2:40][OH:43])[C:11]=3[S:10](=[O:13])(=[O:12])[N:9]=2)[C:15]1=[O:32])[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1

Participants

7

Reactant 4

HCID 757Glycolic AcidHCID 8471TriethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 136347238HCID 136347238, compound

Product 1

HCID 136358493HCID 136358493, compoundYield 42.9%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
23 °C

Procedure

To the solution of the product of Example 345 (0.0226 g, 0.048 mmol) in N,N-dimethylformamide (0.5 mL) was added triethylamine (0.020 mL, 0.145 mmol), 4-(dimethylamino)pyridine (0.018 g, 0.145 mmol), glycolic acid (0.011 g, 0.145 mmol), and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.028 g, 0.145 mmol). The mixture was stirred at 23° C. for 15 hours and then was heated to 60° C. and stirred for 20 hours. The reaction mixture was concentrated under reduced pressure. The concentrate was diluted with dichloromethane, cooled to 0° C., and hydrochloric acid (4 M in dioxane) was added (0.037 mL, 0.145 mmol). The mixture was concentrated under reduced pressure. The residue was purified by reverse phase chromatography, eluting with a gradient of 10% acetonitrile in 0.1% trifluoroacetic acid/water to 95% acetonitrile in 0.1% trifluoracetic acid/water to give the title compound (10.8 mg, 42%). The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) δ 3.91 (s, 2 H) 4.44 (d, J=5.88 Hz, 2 H) 5.61 (bs, 2 H) 7.14 (s, 1 H) 7.29 (m, 5 H) 7.41 (t, J=7.35 Hz, 1 H) 7.52 (d, J=9.19 Hz, 1 H) 7.75 (t, 1 H) 8.21 (dd, 1 H) 8.35 (t, 1 H).

Workup

  1. temperaturewas heated to 60° C.
  2. stirringstirred for 20 hours
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. additionThe concentrate was diluted with dichloromethane
  5. temperaturecooled to 0° C.
  6. additionhydrochloric acid (4 M in dioxane) was added (0.037 mL, 0.145 mmol)
  7. concentrationThe mixture was concentrated under reduced pressure
  8. customThe residue was purified by reverse phase chromatography
  9. washeluting with a gradient of 10% acetonitrile in 0.1% trifluoroacetic acid/water to 95% acetonitrile in 0.1% trifluoracetic acid/water

Sources & evidence

ORD record
ord-248afd510dce48808176dd246500f308
Source dataset
uspto-grants-2011_03
Patent number
US07902203B2

Reaction notes

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