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

Triphenylphosphine → (S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethyl-5-(4-(2,4,5-trifluorophenethoxy)phenyl)pyridin-3-yl)acetic acid

HRID 718453
Notes
Print preview

Reaction equation

HRID 718453 reaction equation
[C:1]([O:5][C@@H:6]([C:12]1[C:13]([CH3:34])=[N:14][C:15]([CH3:33])=[C:16]([C:26]2[CH:31]=[CH:30][C:29](O)=[CH:28][CH:27]=2)[C:17]=1[N:18]1[CH2:23][CH2:22][C:21]([CH3:25])([CH3:24])[CH2:20][CH2:19]1)[C:7]([O:9]CC)=[O:8])([CH3:4])([CH3:3])[CH3:2].[F:35][C:36]1[CH:41]=[C:40]([F:42])[C:39]([F:43])=[CH:38][C:37]=1[CH2:44][CH2:45][OH:46].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C.[OH-].[Na+]>C1COCC1.CO>[C:1]([O:5][C@@H:6]([C:12]1[C:13]([CH3:34])=[N:14][C:15]([CH3:33])=[C:16]([C:26]2[CH:27]=[CH:28][C:29]([O:46][CH2:45][CH2:44][C:37]3[CH:38]=[C:39]([F:43])[C:40]([F:42])=[CH:41][C:36]=3[F:35])=[CH:30][CH:31]=2)[C:17]=1[N:18]1[CH2:19][CH2:20][C:21]([CH3:25])([CH3:24])[CH2:22][CH2:23]1)[C:7]([OH:9])=[O:8])([CH3:4])([CH3:2])[CH3:3]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 5

HCID 11776TriphenylphosphineHCID 14798Sodium HydroxideHCID 5363146Diisopropyl azodicarboxylateHCID 177508392-(2,4,5-Trifluorophenyl)ethan-1-olHCID 118314205(S)-ethyl 2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-5-(4-hydroxyphenyl)-2,6-dimethylpyridin-3-yl)acetate

Product 1

HCID 118307808
(S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethyl-5-(4-(2,4,5-trifluorophenethoxy)phenyl)pyridin-3-yl)acetic acid
Yield 79.2%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a stirred solution of (S)-ethyl 2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-5-(4-hydroxyphenyl)-2,6-dimethylpyridin-3-yl)acetate (25 mg, 0.053 mmol), 2-(2,4,5-trifluorophenyl)ethanol (47.0 mg, 0.267 mmol) and Ph3P-resin (69.7 mg, 0.267 mmol) in THF (2 mL) was added DIAD (0.052 mL, 0.267 mmol) at rt. After 18 h, mixture was filtered to remove polymer, concentrated and treated with 1N NaOH (0.854 mL, 0.854 mmol) in MeOH (1 mL) at 75° C. for 16 h. Mixture was then cooled and purified by prep-HPLC to afford (S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethyl-5-(4-(2,4,5-trifluorophenethoxy)phenyl)pyridin-3-yl)acetic acid (25.2 mg, 0.042 mmol, 79% yield). 1H NMR (500 MHz, DMSO-d6) δ 7.60-7.46 (m, 2H), 7.21 (d, J=8.4 Hz, 1H), 7.08-6.87 (m, 3H), 5.85 (br. s., 1H), 4.26 (q, J=6.2 Hz, 2H), 3.23 (br. s., 1H), 3.07 (t, J=6.2 Hz, 2H), 2.85-2.73 (m, 1H), 2.43 (s, 3H), 2.16 (br. s., 1H), 2.05 (s, 3H), 1.96-1.86 (m, 1H), 1.48 (br. s., 1H), 1.29 (br. s., 1H), 1.17 (d, J=13.6 Hz, 1H), 1.13 (s, 9H), 1.01 (d, J=12.5 Hz, 1H), 0.84 (br. s., 3H), 0.59 (br. s., 3H). LCMS (M+H)=599.2.

Workup

  1. filtrationmixture was filtered
  2. customto remove polymer
  3. concentrationconcentrated
  4. temperatureMixture was then cooled
  5. custompurified by prep-HPLC

Sources & evidence

ORD record
ord-9440d5e7ec284451ad949cddc319551a
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09193720B2

Reaction notes

Loading…

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes