HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Diisopropylethylamine → Trifluoroacetic acid

HRID 713303
Notes
Print preview

Reaction equation

HRID 713303 reaction equation
[OH:1][C:2]([C:4]([F:7])([F:6])[F:5])=[O:3].[F:8][CH:9]([F:37])[CH2:10][NH:11][C:12]1[N:13]=[C:14]2[CH2:36][CH2:35][NH:34][CH2:33][C:15]2=[N:16][C:17]=1[N:18]1[CH2:23][CH2:22][CH:21]([O:24][C:25]2[CH:30]=[CH:29][C:28]([F:31])=[CH:27][C:26]=2[F:32])[CH2:20][CH2:19]1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:71][O:72][C@H:73]([CH3:77])[C:74](O)=[O:75]>CN(C=O)C>[F:37][CH:9]([F:8])[CH2:10][NH:11][C:12]1[N:13]=[C:14]2[CH2:36][CH2:35][N:34]([C:74](=[O:75])[C@H:73]([O:72][CH3:71])[CH3:77])[CH2:33][C:15]2=[N:16][C:17]=1[N:18]1[CH2:19][CH2:20][CH:21]([O:24][C:25]2[CH:30]=[CH:29][C:28]([F:31])=[CH:27][C:26]=2[F:32])[CH2:22][CH2:23]1.[C:2]([OH:3])([C:4]([F:7])([F:6])[F:5])=[O:1]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733584(2R)-2-methoxypropanoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 131734031N-(2,2-difluoroethyl)-3-(4-(2,4-difluorophenoxy)piperidin-1-yl)-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-2-amine TFA salt

Product 2

HCID 6422
Trifluoroacetic acid
Yield 164.4%
HCID 118159182(R)-1-(2-(2,2-difluoroethylamino)-3-(4-(2,4-difluorophenoxy)piperidin-1-yl)-7,8-dihydropyrido[3,4-b]pyrazin-6(5H)-yl)-2-methoxypropan-1-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

A solution of N-(2,2-difluoroethyl)-3-(4-(2,4-difluorophenoxyl)piperidin-1-yl)-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-2-amine TFA salt (17 mg, 0.032 mmol), DIPEA (12.2 mg, 0.095 mmol), and HATU (13.2 mg, 0.035 mmol) in DMF (158 μL) was stirred for 10 min at rt. To this was added (R)-2-methoxypropanoic acid (3.6 mg, 0.035 mmol), and the resulting reaction mixture stirred overnight. The crude reaction mixture was diluted in DMF, filtered through a hydrophilic PTFE 0.45 μm filter (Millipore® Millex-LCR), and purified via HPLC Method A to give the title compound as a TFA salt (6 mg) as a clear oil. 1H NMR (400 MHz, methanol-d4, mixture of rotamers) δ ppm 1.32 (d, J=6.8 Hz, 1.3H), 1.38 (d, J=6.6 Hz, 1.7H), 1.92-2.03 (m, 2H), 2.09-2.18 (m, 2H), 2.78 (t, J=6.2 Hz, 0.9H), 2.86 (m, 1.1H), 2.97-3.06 (m, 2H), 3.33 (s, 3H), 3.35-3.43 (m, 2H), 3.79 (td, J=14.5, 4.3 Hz, 2H), 3.85-3.97 (m, 2H), 4.36 (dq, J=12.7, 6.5 Hz, 1H), 4.42-4.49 (m, 1H), 4.58 (m, 0.9H), 4.68 (m, 1.1H), 5.90-6.22 (m, 1H), 6.84-6.91 (m, 1H), 6.98 (ddd, J=11.4, 8.5, 3.0 Hz, 1H), 7.18 (td, J=9.2, 5.3 Hz, 1H); ESI-MS m/z [M+H]+ 512.4.

Workup

  1. customthe resulting reaction mixture
  2. customThe crude reaction mixture
  3. filtrationfiltered through a hydrophilic PTFE 0.45 μm
  4. filtrationfilter (Millipore® Millex-LCR)
  5. custompurified via HPLC Method A

Sources & evidence

ORD record
ord-f3833a777d8e4291b767c0dcba714d31
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09181249B2

Reaction notes

Loading…

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes