Trifluoroacetic acid → HCID 71014649, compound

HRID 2368461Notes

Reaction equation

HRID 2368461 reaction equation
C(OC([N:8]1[CH2:15][CH2:14][N:13]([C:16]2[N:17]=[C:18]([C:26]3[C:27](=[O:56])[N:28]([CH2:42][O:43][P:44]([O:51]C(C)(C)C)([O:46]C(C)(C)C)=[O:45])[C:29](=[O:41])[C:30]=3[C:31]3[C:39]4[C:34](=[C:35]([CH3:40])[CH:36]=[CH:37][CH:38]=4)[NH:33][CH:32]=3)[C:19]3[C:24]([CH:25]=2)=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH2:12][C:9]21[CH2:11][CH2:10]2)=O)(C)(C)C.C(O)(C(F)(F)F)=O>ClCCCl.CO>[CH2:10]1[C:9]2([CH2:12][N:13]([C:16]3[N:17]=[C:18]([C:26]4[C:27](=[O:56])[N:28]([CH2:42][O:43][P:44](=[O:45])([OH:51])[OH:46])[C:29](=[O:41])[C:30]=4[C:31]4[C:39]5[C:34](=[C:35]([CH3:40])[CH:36]=[CH:37][CH:38]=5)[NH:33][CH:32]=4)[C:19]4[C:24]([CH:25]=3)=[CH:23][CH:22]=[CH:21][CH:20]=4)[CH2:14][CH2:15][NH:8]2)[CH2:11]1

Participants

5

Reactant 2

HCID 6422Trifluoroacetic acidHCID 71041186HCID 71041186, compound

Product 1

HCID 71014649HCID 71014649, compound

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolvent2×HCID 887MethanolSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of 7-{1-[1-(di-tert-butoxy-phosphoryloxymethyl)-4-(7-methyl-1H-indol-3-yl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]-isoquinolin-3-yl}-4,7-diaza-spiro[2.5]octane-4-carboxylic acid tert-butyl ester (1.90 g, 2.42 mmol) in 1,2-dichloroethane (50 mL) was added TFA (8.27 g, 72.5 mmol) under argon at 0° C. The reaction mixture was stirred for 3.5 h under argon at 0° C. until UPLC-MS indicated that full conversion of the starting material had occurred. The reaction mixture was diluted with 1,2-dichloroethane (50 mL) and concentrated at reduced pressure to afford the crude product as a red solid. The crude reaction product was dissolved in MeOH and slowly concentrated at reduced pressure until crystallization started to occur. Pentane was added and the solids were filtered off and washed with Et2O. Further purification was achieved by suspending the crude product in DMSO, followed by sonication for 30 min. The solids were filtered off, washed with Et2O and dried at high vacuum (<1 mm Hg) to afford the title compound as a dark red solid. 1H-NMR (400 MHz, DMSO-d6): 12.10 (s, 1H), 8.08 (d, 1H), 7.65-7.61 (m, 2H), 7.44 (t, 1H), 7.20 (s, 1H), 7.06 (t, 1H), 6.74 (d, 1H), 6.43 (t, 1H), 6.00 (d, 1H), 5.29 (d, 2H), 3.87-3.01 (m, 6H), 2.37 (s, 3H), 0.97-0.62 (m, 4H). 31P-NMR (162 MHz, DMSO-d6): −6.0. LCMS: [M+1]+=574.0, Rt(1)=1.77 min., Rt(2)=0.71 min.

Workup

  1. concentrationconcentrated at reduced pressure
  2. customto afford the crude product as a red solid
  3. customThe crude reaction product
  4. concentrationslowly concentrated at reduced pressure until crystallization
  5. additionPentane was added
  6. filtrationthe solids were filtered off
  7. washwashed with Et2O
  8. customFurther purification
  9. customfollowed by sonication for 30 min
  10. filtrationThe solids were filtered off
  11. washwashed with Et2O
  12. customdried at high vacuum (<1 mm Hg)

Sources & evidence

ORD record
ord-31b9ca418bba4c5eb9374de1753aaaaa
Source dataset
uspto-grants-2014_04
Patent number
US08703782B2

Reaction notes

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