Trifluoroacetic acid → (S)-8-(2-Amino-6-((R)-2,2,2-trifluoro-1-(3'-(methylsulfonyl)-4-propyl-[1,1'-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-3-carboxylic acid

HRID 1499225Notes

Reaction equation

HRID 1499225 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[CH2:29][CH2:28][C:11]3([CH2:15][N:14](C(OC(C)(C)C)=O)[C@H:13]([C:23]([O:25]CC)=[O:24])[CH2:12]3)[CH2:10][CH2:9]2)[CH:5]=[C:4]([O:30][C@H:31]([C:36]2[CH:41]=[C:40]([CH2:42][CH2:43][CH3:44])[CH:39]=[CH:38][C:37]=2[C:45]2[CH:50]=[CH:49][CH:48]=[C:47]([S:51]([CH3:54])(=[O:53])=[O:52])[CH:46]=2)[C:32]([F:35])([F:34])[F:33])[N:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:1][C:2]1[N:7]=[C:6]([N:8]2[CH2:9][CH2:10][C:11]3([CH2:15][NH:14][C@H:13]([C:23]([OH:25])=[O:24])[CH2:12]3)[CH2:28][CH2:29]2)[CH:5]=[C:4]([O:30][C@H:31]([C:36]2[CH:41]=[C:40]([CH2:42][CH2:43][CH3:44])[CH:39]=[CH:38][C:37]=2[C:45]2[CH:50]=[CH:49][CH:48]=[C:47]([S:51]([CH3:54])(=[O:53])=[O:52])[CH:46]=2)[C:32]([F:35])([F:33])[F:34])[N:3]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 117952165(S)-2-tert-butyl 3-ethyl 8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3'-(methylsulfonyl)-4-propyl-[1,1'-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate

Product 1

HCID 117947795(S)-8-(2-Amino-6-((R)-2,2,2-trifluoro-1-(3'-(methylsulfonyl)-4-propyl-[1,1'-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-3-carboxylic acid

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (S)-2-tert-butyl 3-ethyl 8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3′-(methylsulfonyl)-4-propyl-[1,1′-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate in CH2Cl2 (4 mL) was added TFA (2.0 mL) dropwise at 0° C. The reaction mixture was stirred at RT for 2 h, then concentrated in vacuo. The pH was adjusted to 7-8 with saturated aqueous NaHCO3 solution. The aqueous layer was extracted with CH2Cl2. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification by normal phase silica gel column (CH2Cl2/MeOH) provided the title compound as a white solid.

Workup

  1. concentrationconcentrated in vacuo
  2. extractionThe aqueous layer was extracted with CH2Cl2
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by normal phase silica gel column (CH2Cl2/MeOH)

Sources & evidence

ORD record
ord-542383978eaa4e0b9b001a91590ddc02
Source dataset
uspto-grants-2015_12
Patent number
US09199994B2

Reaction notes

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