Benzoylhydrazine → N'-((2R,3S)-2-(2,3-Dichloro-4-cyanophenylamino)-3-hydroxybutanoyl)benzohydrazide

HRID 2388442Notes

Reaction equation

HRID 2388442 reaction equation
[Cl:1][C:2]1[C:7]([Cl:8])=[C:6]([C:9]#[N:10])[CH:5]=[CH:4][C:3]=1[NH:11][C@H:12]([C@@H:16]([OH:18])[CH3:17])[C:13]([OH:15])=O.[C:19]([NH:27][NH2:28])(=[O:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.ClC1C(CC)=C(N[C@H]([C@@H](O)C)C(NNC(=O)C2C=CC=CC=2)=O)C=CC=1C#N>>[Cl:1][C:2]1[C:7]([Cl:8])=[C:6]([C:9]#[N:10])[CH:5]=[CH:4][C:3]=1[NH:11][C@H:12]([C@@H:16]([OH:18])[CH3:17])[C:13]([NH:28][NH:27][C:19](=[O:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=[O:15]

Participants

4

Reactant 3

HCID 11955BenzoylhydrazineHCID 57908707(2R,3S)-2-(2,3-dichloro-4-cyanophenylamino)-3-hydroxybutanoic acidHCID 67007028N'-((2R,3S)-2-(3-chloro-4-cyano-2-ethylphenylamino)-3-hydroxybutanoyl)benzohydrazide

Product 1

HCID 57908628N'-((2R,3S)-2-(2,3-Dichloro-4-cyanophenylamino)-3-hydroxybutanoyl)benzohydrazideYield 50%

Procedure

(2R,3S)-2-(2,3-dichloro-4-cyanophenylamino)-3-hydroxybutanoic acid (1.0 g, 3.46 mmol) and benzohydrazide (471 mg, 3.46 mmol) were reacted using the techniques described for the preparation of intermediate 11c to furnish the title compound (700 mg, 50%). 1H NMR (500 MHz, acetone-d6, δ in ppm) 9.7 (br s, 2H), 7.91 (d, J=8 Hz, 2H), 7.41-7.62 (m, 4H), 6.82 (d, J=8 Hz, 1H), 6.18 (d, J=7 Hz, 1H), 4.90 (br s, 1H), 4.38-4.41 (m, 1H), 4.19-4.21 (m, 1H) and 1.32 (d, J=6 Hz, 3H).

Sources & evidence

ORD record
ord-336d7eb75c5745f9963689c19cdfa586
Source dataset
uspto-grants-2012_09
Patent number
US08268872B2

Reaction notes

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