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Hydrochloric Acid → N-((S)-1-(3,4-dichlorophenyl)-2-hydroxyethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide

HRID 2279540
Notes
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Reaction equation

HRID 2279540 reaction equation
[Si]([O:8][CH2:9][C@@H:10]([NH:19][C:20]([N:22]1[CH2:31][CH2:30][C:29]2[CH:28]=[N:27][C:26]([NH:32][CH:33]([CH3:38])[C:34]([F:37])([F:36])[F:35])=[N:25][C:24]=2[CH2:23]1)=[O:21])[C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([Cl:18])[CH:12]=1)(C(C)(C)C)(C)C.Cl.CC(O)C>C(Cl)Cl>[Cl:18][C:13]1[CH:12]=[C:11]([C@H:10]([NH:19][C:20]([N:22]2[CH2:31][CH2:30][C:29]3[CH:28]=[N:27][C:26]([NH:32][CH:33]([CH3:38])[C:34]([F:36])([F:37])[F:35])=[N:25][C:24]=3[CH2:23]2)=[O:21])[CH2:9][OH:8])[CH:16]=[CH:15][C:14]=1[Cl:17]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 3776IsopropanolHCID 68294705N-((S)-2-(tert-butyldimethylsilyloxy)-1-(3,4-dichlorophenyl)ethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide

Product 1

HCID 86705530N-((S)-1-(3,4-dichlorophenyl)-2-hydroxyethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 302 (0.160 g, 0.270 mmol) and DCM (5 mL) at RT was added 6M HCl in IPA (0.450 mL, 2.70 mmol) and the reaction was stirred for 1 h. The reaction was poured into satd. aq. Na2CO3, and extracted with DCM. The combined organic extracts were dried (MgSO4), filtered, and concentrated in vacuo. The crude product was purified by SiO2 chromatography eluting with a DCM/MeOH gradient (500:20 to 500:30) to afford 0.010 g (7.74%) of I-76: MS m/z (APCI-pos) M+1=478.

Workup

  1. additionThe reaction was poured into satd
  2. extractionaq. Na2CO3, and extracted with DCM
  3. dry with materialThe combined organic extracts were dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by SiO2 chromatography
  7. washeluting with a DCM/MeOH gradient (500:20 to 500:30)
  8. customto afford 0.010 g (7.74%) of I-76

Sources & evidence

ORD record
ord-b5fd21ac9eab4f3e9e46a1113b9da615
Source dataset
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09133187B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes