Triethylamine → HCID 58609841, compound

HRID 2043215Notes

Reaction equation

HRID 2043215 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH:8](O)[C:9]1[S:13][C:12]([NH:14][C:15]([C:17]2([C:20]3[CH:28]=[CH:27][C:23]4[O:24][CH2:25][O:26][C:22]=4[CH:21]=3)[CH2:19][CH2:18]2)=[O:16])=[N:11][CH:10]=1.C(N(CC)CC)C.CS(Cl)(=O)=O.[NH:42]1[CH2:46][CH2:45][C@@H:44]([OH:47])[CH2:43]1>ClCCl>[O:24]1[C:23]2[CH:27]=[CH:28][C:20]([C:17]3([C:15]([NH:14][C:12]4[S:13][C:9]([CH:8]([C:3]5[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=5[Cl:1])[N:42]5[CH2:46][CH2:45][C@@H:44]([OH:47])[CH2:43]5)=[CH:10][N:11]=4)=[O:16])[CH2:18][CH2:19]3)=[CH:21][C:22]=2[O:26][CH2:25]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 2759337(R)-3-PyrrolidinolHCID 11774705HCID 11774705, compound

Product 1

HCID 58609841HCID 58609841, compoundYield 33,333.301%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

1-Benzo[1,3]dioxol-5-yl-cyclopropanecarboxylic acid [5-[(2-chloro-phenyl)-hydroxy-methyl]-thiazol-2-yl]-amide (0.500 g, 1.17 mmol) was placed in 10 mL of anhydrous dichloromethane containing triethylamine (984 μL, 7.02 mmol). The mixture was cooled to 0° C. and methanesulfonyl chloride (364 μL, 4.68 mmol) was added, immediately followed by (R)-pyrrolidin-3-ol (945 μL, 11.7 mmol) and the solution was allowed to stir for 10 minutes at room temperature. The crude product was washed three times with an equal volume of a saturated aqueous solution of sodium bicarbonate, followed by a saturated aqueous solution of sodium chloride. The organic layer was then dried over sodium sulfate and evaporated to dryness. The crude mixture was purified by column chromatography (20-90% ethyl acetate in hexanes on silica gel) to yield the product as a white solid (194.2 mg, 0.390 mol, 33.3%). 1H NMR (400 MHz, DMSO-d6) δ 1.09-1.15 (m, 2H), 1.41-1.44 (m, 2H), 1.54-1.63 (m, 1H), 1.93-2.77 (m, 5H), 4.20 (s, 1H), 4.72-4.77 (m, 1H), 4.96 (d, J=7.0 Hz, 1H), 6.00 (s, 2H), 6.85 (d, J=0.9 Hz, 2H), 6.95 (s, 1H), 7.24-7.29 (m, 1H), 7.37-7.43 (m, 3H), 7.76-7.80 (m, 1H), 11.03 (s, 1H). ESI-MS m/z calc. 497.1. found; 498.1 (M+1)+; Retention time 2.36 minutes.

Workup

  1. washThe crude product was washed three times with an equal volume of a saturated aqueous solution of sodium bicarbonate
  2. dry with materialThe organic layer was then dried over sodium sulfate
  3. customevaporated to dryness
  4. customThe crude mixture was purified by column chromatography (20-90% ethyl acetate in hexanes on silica gel)

Sources & evidence

ORD record
ord-06994cbe990d4181ab12e30646ed5138
Source dataset
uspto-grants-2013_11
Patent number
US08586615B2

Reaction notes

Loading…