Hydrogen Sulfide → ethyl [(1S)-5-(3-{[5-(aminocarbonothioyl)-2-pyridinyl]oxy}propoxy)-2,3-dihydro-1H-inden-1-yl]acetate

HRID 2235917Notes

Reaction equation

HRID 2235917 reaction equation
[C:1]([C:3]1[CH:4]=[CH:5][C:6]([O:9][CH2:10][CH2:11][CH2:12][O:13][C:14]2[CH:15]=[C:16]3[C:20](=[CH:21][CH:22]=2)[C@H:19]([CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])[CH2:18][CH2:17]3)=[N:7][CH:8]=1)#[N:2].[SH2:29].C(NCC)C>CN(C=O)C>[NH2:2][C:1]([C:3]1[CH:4]=[CH:5][C:6]([O:9][CH2:10][CH2:11][CH2:12][O:13][C:14]2[CH:15]=[C:16]3[C:20](=[CH:21][CH:22]=2)[C@H:19]([CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])[CH2:18][CH2:17]3)=[N:7][CH:8]=1)=[S:29]

Participants

5

Reactant 3

HCID 402Hydrogen SulfideHCID 8021DiethylamineHCID 59300525ethyl ((1S)-5-{3-[(5-cyano-2-pyridinyl)oxy]propoxy}-2,3-dihydro-1H-inden-1-yl)acetate

Product 1

HCID 59300425ethyl [(1S)-5-(3-{[5-(aminocarbonothioyl)-2-pyridinyl]oxy}propoxy)-2,3-dihydro-1H-inden-1-yl]acetateYield 86%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Through a solution of ethyl ((1S)-5-{3-[(5-cyano-2-pyridinyl)oxy]propoxy}2,3-dihydro-1H-inden-1-yl)acetate (Example 258) (600 mg, 1.58 mmol) in DMF (8 mL) was passed H2S, gently at rt for 20 min. Diethylamine (0.24 mL, 2.37 mmol) was added in one portion and the resultant light-green solution was heated at 60° C. for 3 h (TLC in 2:1 hexanes/EtOAc indicated that the reaction was complete). The darkgreen solution was purged with a strong flow of argon, and then concentrated under reduced pressure. The product (0.56 g, 86%) was isolated by column chromatography (1:1 hexanes/EtOAc) as a bright yellow solid. 1H NMR (400 MHz, CD2Cl2) δ 8.65 (dd, 1H), 8.16 (dd, 1H), 7.56 (b, 1H), 7.19 (b, 1H), 7.04 (d, 1H), 6.80-6.72 (m, 2H), 6.69 (dd, 1H), 4.56 (t, 2H), 4.16 (q, 2H), 4.12 (t, 2H), 3.50 (qt, 1H), 2.90-2.78 (m, 2H), 2.70 (dd, 1H), 2.45-2.32 (m, 2H), 2.30-2.22 (m, 2H), 1.80-1.70 (m, 1H), 1.28 (t, 3H).

Workup

  1. customThe darkgreen solution was purged with a strong flow of argon
  2. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-f81cee863f5e4a8d85fadfd397e3abba
Source dataset
uspto-grants-2010_05
Patent number
US07714004B2

Reaction notes

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