2-((1,1-Dimethylethyl)imino)-N,N-diethylhexahydro-1,3-dimethyl-2lambda5-1,3,2-diazaphosphorin-2-amine → HCID 44200770, compound

HRID 563205Notes

Reaction equation

HRID 563205 reaction equation
[Cl:1][C:2]1[C:3]([CH3:28])=[C:4]([NH:10][C@H:11]([C:24]([OH:27])([CH3:26])[CH3:25])[C:12]([NH:14][NH:15][C:16](=O)[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[O:13])[CH:5]=[CH:6][C:7]=1[C:8]#[N:9].CCN(P1(N(C)CCCN1C)=NC(C)(C)C)CC>C1COCC1>[Cl:1][C:2]1[C:3]([CH3:28])=[C:4]([NH:10][C@@H:11]([C:12]2[O:13][C:16]([C:17]3[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=3)=[N:15][N:14]=2)[C:24]([OH:27])([CH3:26])[CH3:25])[CH:5]=[CH:6][C:7]=1[C:8]#[N:9]

Participants

4

Reactant 2

HCID 35138512-((1,1-Dimethylethyl)imino)-N,N-diethylhexahydro-1,3-dimethyl-2lambda5-1,3,2-diazaphosphorin-2-amineHCID 67007021HCID 67007021, compound2×

Product 1

HCID 44200770HCID 44200770, compoundYield 36.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

The crude material of (R)—N′-(2-(3-chloro-4-cyano-2-methylphenylamino)-3-hydroxy-3-methylbutanoyl)benzohydrazide (intermediate 14b) (218 mg, 0.54 mmol) was added to THF (50 mL) stirred at room temperature. PS-BEMP (742 mg, 1.63 mmol base) was added to the solution, followed by slow addition of p-TSCl (114 mg, 0.60 mmol). The reaction mixture was stirred for 1.5 h and the progress of the reaction was monitored by TLC. After the completion of the reaction, the BEMP reagent was filtered off and the solution concentrated to give the crude material. The crude material was chromatographed with hexanes:EtOAc (6:4) to give the title compound (75 mg, 28%): 1H NMR (500 MHz, CDCl3, δ in ppm) 7.94 (d, J=9 Hz, 2H), 7.54 (m, 1H), 7.46 (m, 2H), 7.34 (d, J=9 Hz, 1H), 6.56 (d, J=9 Hz, 1H), 5.45 (d, J=9 Hz, 1H), 4.71 (d, J=9 Hz, 1H), 3.12 (s, 1H), 2.37 (s, 3H), 1.50 (s, 3H), 1.37 (s, 3H).

Workup

  1. additionfollowed by slow addition of p-TSCl (114 mg, 0.60 mmol)
  2. stirringThe reaction mixture was stirred for 1.5 h
  3. customAfter the completion of the reaction
  4. filtrationthe BEMP reagent was filtered off
  5. concentrationthe solution concentrated
  6. customto give the crude material
  7. customThe crude material was chromatographed with hexanes:EtOAc (6:4)

Sources & evidence

ORD record
ord-cb9e1276b60d469bb5d52aac88b2e16b
Source dataset
uspto-grants-2011_11
Patent number
US08067448B2

Reaction notes

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