4-Methylmorpholine → 4-(tert-Butyl-dimethyl-silanyloxy)-3-({7-[(naphthalene-2-carbonyl)-amino]-6-oxo-1,3,4,6,7,8,11,11a-octahydro-2H-pyrido[1,2-a]azocine-4-carbonyl}-amino)-butyric Acid Benzyl Ester

HRID 722746Notes

Reaction equation

HRID 722746 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][C:2]=1[C:11]([NH:13][CH:14]1[C:21](=[O:22])[N:20]2[CH:23]([C:27](O)=[O:28])[CH2:24][CH2:25][CH2:26][CH:19]2[CH2:18][CH:17]=[CH:16][CH2:15]1)=[O:12].Cl.CN(C)CCCN=C=NCC.CN1CCOCC1.ON1C2C=CC=CC=2N=N1.[CH2:59]([O:66][C:67](=[O:80])[CH2:68][CH:69]([NH2:79])[CH2:70][O:71][Si:72]([C:75]([CH3:78])([CH3:77])[CH3:76])([CH3:74])[CH3:73])[C:60]1[CH:65]=[CH:64][CH:63]=[CH:62][CH:61]=1>C1COCC1.O>[CH2:59]([O:66][C:67](=[O:80])[CH2:68][CH:69]([NH:79][C:27]([CH:23]1[N:20]2[C:21](=[O:22])[CH:14]([NH:13][C:11]([C:2]3[CH:3]=[CH:4][C:5]4[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=4)[CH:1]=3)=[O:12])[CH2:15][CH:16]=[CH:17][CH2:18][CH:19]2[CH2:26][CH2:25][CH2:24]1)=[O:28])[CH2:70][O:71][Si:72]([C:75]([CH3:76])([CH3:77])[CH3:78])([CH3:74])[CH3:73])[C:60]1[CH:61]=[CH:62][CH:63]=[CH:64][CH:65]=1

Participants

8

Reactant 5

HCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 23571419HCID 23571419, compoundHCID 696597087-[(Naphthalene-2-carbonyl)-amino]-6-oxo-1,3,4,6,7,8,11,11a-octahydro-2H-pyrido[1,2-a]azocine-4-carboxylic acid

Product 1

HCID 696596654-(tert-Butyl-dimethyl-silanyloxy)-3-({7-[(naphthalene-2-carbonyl)-amino]-6-oxo-1,3,4,6,7,8,11,11a-octahydro-2H-pyrido[1,2-a]azocine-4-carbonyl}-amino)-butyric Acid Benzyl Ester

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

7-[(Naphthalene-2-carbonyl)-amino]-6-oxo-1,3,4,6,7,8,11,11a-octahydro-2H-pyrido[1,2-a]azocine-4-carboxylic acid (0.44 gm) is dissolved in 15 mL THF to which 0.24 gm of 1-(3-dimethylaminopropyl)-3-ethyl-carbodiimide hydrochloride (EDC), 0.15 mL of N-methylmorpholine, and 0.17 gm of 1-hydroxybenzotriazole (HOBt) is added. The reaction mixture is stirred for 20 min then added to a solution of 3-amino-4-(tert-butyl-dimethyl-silanyloxy)-butyric acid benzyl ester (0.52 gm, prepared by methods described in Chem. Pharm. Bull. 1999, 47, 11–21) in 5 mL THF. The resulting mixture is striired at RT for ˜18 h, then poured into water, and extracted with ethyl acetate. The organic layer is washed with saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride, then dried over sodium sulfate powder. Filtration and evaporation produces a crude product which is then purified over silica (1:1 ethylacetate:hexanes) to afford the desired product.

Workup

  1. additionis added
  2. waitThe resulting mixture is striired at RT for ˜18 h
  3. extractionextracted with ethyl acetate
  4. washThe organic layer is washed with saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride
  5. dry with materialdried over sodium sulfate powder
  6. filtrationFiltration and evaporation
  7. customproduces a crude product which
  8. customis then purified over silica (1:1 ethylacetate:hexanes)

Sources & evidence

ORD record
ord-2b1d0af5ccaa4ae79d8240acc45d9a0e
Source dataset
uspto-grants-2006_11
Patent number
US07138395B2

Reaction notes

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