Lawesson's reagent → HCID 88771173, compound

HRID 593358Notes

Reaction equation

HRID 593358 reaction equation
[Cl:1][C:2]1[CH:3]=[N:4][C:5]2[CH:6]([NH:11][C:12]3[CH:13]=[CH:14][C:15]([F:26])=[C:16]([C@@:18]4([CH3:25])[NH:23][C:22](=O)[CH2:21][O:20][CH2:19]4)[CH:17]=3)[CH2:7][CH2:8][C:9]=2[CH:10]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:36])=CC=1>O1CCOCC1>[Cl:1][C:2]1[CH:3]=[N:4][C:5]2[CH:6]([NH:11][C:12]3[CH:13]=[CH:14][C:15]([F:26])=[C:16]([C@@:18]4([CH3:25])[NH:23][C:22](=[S:36])[CH2:21][O:20][CH2:19]4)[CH:17]=3)[CH2:7][CH2:8][C:9]=2[CH:10]=1

Participants

4

Reactant 2

HCID 87949Lawesson's reagentHCID 68152353HCID 68152353, compound

Product 1

HCID 88771173HCID 88771173, compound

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

A solution of (R)-5-[5-((RS)-3-chloro-6,7-dihydro-5H-[1]pyrindin-7-ylamino)-2-fluoro-phenyl]-5-methyl-morpholin-3-one (76 mg, 0.2 mmol) in dioxane (3 ml) was treated with Lawesson's reagent (53.2 mg, 0.13 mmol). The reaction mixture was stirred at 80° C. for 3 hours. For the workup, the mixture was quenched with a saturated aqueous solution of sodium hydrogen carbonate, thereafter extracted with ethyl acetate. The combined organic layers were dried over sodium sulphate, then evaporated at reduced pressure. The crude material was purified by flash chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 45:55 as the eluent. The (R)-5-[5-((RS)-3-chloro-6,7-dihydro-5H-[1]pyrindin-7-ylamino)-2-fluoro-phenyl]-5-methyl-morpholin-3-thione was obtained as a white solid (58 mg, 73%); (calculated) C19H19ClFN3OS [391.90]; (found) [M+H]+=392, [M+2+H]+=394.

Workup

  1. customFor the workup, the mixture was quenched with a saturated aqueous solution of sodium hydrogen carbonate
  2. extractionextracted with ethyl acetate
  3. dry with materialThe combined organic layers were dried over sodium sulphate
  4. customevaporated at reduced pressure
  5. customThe crude material was purified by flash chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 45:55 as the eluent

Sources & evidence

ORD record
ord-875e426e4b284d96a904d7a52ef7eba8
Source dataset
uspto-grants-2016_01
Patent number
US09242943B2

Reaction notes

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