Ethanolamine → HCID 68973505, compound

HRID 727262Notes

Reaction equation

HRID 727262 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:14]3[C:15]([CH3:19])=[C:16]([CH3:18])[S:17][C:13]=3[N:12]3[C:20]([CH3:23])=[N:21][N:22]=[C:11]3[C@H:10]([CH2:24][C:25]([OH:27])=O)[N:9]=2)=[CH:4][CH:3]=1.C(N(CC)CC)C.C(Cl)(=O)C(C)(C)C.[CH2:42]([CH2:44][NH2:45])[OH:43]>O1CCCC1.O.CN(C)C=O>[OH:43][CH2:42][CH2:44][NH:45][C:25](=[O:27])[CH2:24][C@@H:10]1[N:9]=[C:8]([C:5]2[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=2)[C:14]2[C:15]([CH3:19])=[C:16]([CH3:18])[S:17][C:13]=2[N:12]2[C:20]([CH3:23])=[N:21][N:22]=[C:11]12

Participants

8

Reactant 4

HCID 700EthanolamineHCID 8471TriethylamineHCID 62493Pivaloyl chlorideHCID 668281072-((9S)-7-(4-chlorophenyl)-4,5,13-trimethyl-3-thia-1,8,11,12-tetraazatricyclo(8.3.0.0,2,6)trideca-2(6),4,7,10,12-pentaen-9-yl)acetic acid

Product 1

HCID 68973505HCID 68973505, compoundYield 29.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
-5 °C

Procedure

(S)-4-(4-Chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f]-[1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetic acid (7.0 g) and triethylamine (2.73 ml) are added to a mixed solvent of dimethylformamide (70 ml) and tetrahydrofuran (30 ml). The mixture is cooled to -5° C., and pivaloyl chloride (2.38 ml) is dropwise added at said temperature. Ten minutes later, a solution of ethanolamine (1.17 g) in tetrahydrofuran (10 ml) is dropwise added at said temperature, and the mixture is stirred at room temperature for 2 hours. Water is added to the reaction mixture, and the mixture is extracted with ethyl acetate, washed with water and dried over anhydrous magnesium sulfate. The solvent is distilled away, and the residue is purified by column chromatography (chloroform: methanol =50: 1) and recrystallized from ethyl acetate to give 2.29 g of (S)-N-(2-hydroxyethyl)-4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetamide 1/4 hydrate, melting point 254°-255° C.

Workup

  1. extractionthe mixture is extracted with ethyl acetate
  2. washwashed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationThe solvent is distilled away
  5. customthe residue is purified by column chromatography (chloroform: methanol =50: 1)
  6. customrecrystallized from ethyl acetate

Sources & evidence

ORD record
ord-58e0de326b254e8f9ed58e5d6aa2dedb
Source dataset
uspto-grants-1998_01
Patent number
US05712274

Reaction notes

Loading…