4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride → (9H-fluoren-9-yl)methyl (S)-1-(((S)-1,1-diethoxypropan-2-yl)(quinolin-8-ylmethyl)amino)-3-(4-hydroxy-2,6-dimethylphenyl)-1-oxopropan-2-ylcarbamate

HRID 718904Notes

Reaction equation

HRID 718904 reaction equation
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@@H:19]([CH2:23][C:24]3[C:29]([CH3:30])=[CH:28][C:27]([OH:31])=[CH:26][C:25]=3[CH3:32])[C:20](O)=[O:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.[CH2:33]([O:35][CH:36]([O:51][CH2:52][CH3:53])[C@@H:37]([NH:39][CH2:40][C:41]1[CH:42]=[CH:43][CH:44]=[C:45]2[C:50]=1[N:49]=[CH:48][CH:47]=[CH:46]2)[CH3:38])[CH3:34].[Cl-].COC1N=C(OC)N=C([N+]2(C)CCOCC2)N=1>ClCCl.C(OCC)(=O)C>[CH2:33]([O:35][CH:36]([O:51][CH2:52][CH3:53])[C@@H:37]([N:39]([CH2:40][C:41]1[CH:42]=[CH:43][CH:44]=[C:45]2[C:50]=1[N:49]=[CH:48][CH:47]=[CH:46]2)[C:20](=[O:21])[C@@H:19]([NH:18][C:16](=[O:17])[O:15][CH2:14][CH:12]1[C:13]2[CH:1]=[CH:2][CH:3]=[CH:4][C:5]=2[C:6]2[C:11]1=[CH:10][CH:9]=[CH:8][CH:7]=2)[CH2:23][C:24]1[C:29]([CH3:30])=[CH:28][C:27]([OH:31])=[CH:26][C:25]=1[CH3:32])[CH3:38])[CH3:34]

Participants

6

Reactant 3

HCID 27340594-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chlorideHCID 21106160Fmoc-2,6-dimethyl-L-tyrosineHCID 67074994(S)-1,1-diethoxy-N-(quinolin-8-ylmethyl)propan-2-amine

Product 1

HCID 86698531(9H-fluoren-9-yl)methyl (S)-1-(((S)-1,1-diethoxypropan-2-yl)(quinolin-8-ylmethyl)amino)-3-(4-hydroxy-2,6-dimethylphenyl)-1-oxopropan-2-ylcarbamateYield 55.2%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To the solution of (S)-2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-(4-hydroxy-2,6-dimethylphenyl)propanoic acid 907 mg (2.1 mmol) and (S)-1,1-diethoxy-N-(quinolin-8-ylmethyl)propan-2-amine (Compound IX-3) 577 mg (2.0 mmol) in dichloromethane 10 ml, 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride 660 mg (2.1 mmol) was added and stirred at room temperature for 5 hours. The reaction mixture was diluted with ethyl acetate 50 ml and washed with saturated sodium bicarbonate 50 ml, water 50 ml and brine 50 ml. The organic phase was dried with magnesium sulfate and filtered. The filtrate was concentrated in vacuo and the residue was purified on silica gel column chromatography (n-hexane:ethyl acetate=1:1) to obtain the title compound 775 mg (55%).

Workup

  1. washwashed with saturated sodium bicarbonate 50 ml, water 50 ml and brine 50 ml
  2. dry with materialThe organic phase was dried with magnesium sulfate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated in vacuo
  5. customthe residue was purified on silica gel column chromatography (n-hexane:ethyl acetate=1:1)

Sources & evidence

ORD record
ord-70369b7db43741849843e0084a884c69
Source dataset
uspto-grants-2015_11
Patent number
US09193734B2

Reaction notes

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