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Lithium borohydride → (2-{[(4-Cyano-2-hydroxymethyl-benzyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-pyridin-3-yl)-carbamic acid tert-butyl ester

HRID 1592646
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1592646
C[O:2][C:3](=O)[C:4]1[CH:9]=[C:8]([C:10]#[N:11])[CH:7]=[CH:6][C:5]=1[CH2:12][N:13]([CH2:22][C:23]1[C:28]([NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])=[CH:27][CH:26]=[CH:25][N:24]=1)[CH2:14][C:15]1[C:20]([CH3:21])=[CH:19][CH:18]=[CH:17][N:16]=1.[Li+].[BH4-]>CO>[C:33]([O:32][C:30](=[O:31])[NH:29][C:28]1[C:23]([CH2:22][N:13]([CH2:12][C:5]2[CH:6]=[CH:7][C:8]([C:10]#[N:11])=[CH:9][C:4]=2[CH2:3][OH:2])[CH2:14][C:15]2[C:20]([CH3:21])=[CH:19][CH:18]=[CH:17][N:16]=2)=[N:24][CH:25]=[CH:26][CH:27]=1)([CH3:36])([CH3:34])[CH3:35]
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Komponenten

4

Edukt 2

HCID 4148881Lithium borohydrideHCID 672728132-{[(3-tert-Butoxycarbonylamino-pyridin-2-ylmethyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-5-cyano-benzoic acid methyl ester

Produkt 1

HCID 67272411(2-{[(4-Cyano-2-hydroxymethyl-benzyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-pyridin-3-yl)-carbamic acid tert-butyl esterAusbeute 98,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887Methanol
Lösungsmittel

Versuchsvorschrift

To a cold (0° C.) solution of 2-{[(3-tert-Butoxycarbonylamino-pyridin-2-ylmethyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-5-cyano-benzoic acid methyl ester (0.388 g, 0.77 mmol) in MeOH (7 mL) was added LiBH4 (107 mg, 4.91 mmol) and the mixture was allowed to warm to room temperature overnight. The mixture was concentrated and the residue was partitioned between CH2Cl2 (50 mL) and 1.0 N NaOH (15 mL). The phases were separated and the aqueous phase was extracted with CH2Cl2 (3×15 mL). The combined organic extracts were dried (Na2SO4) and concentrated and provided 0.36 g of (2-{[(4-Cyano-2-hydroxymethyl-benzyl)-(3-methyl-pyridin-2-ylmethyl)-amino]-methyl}-pyridin-3-yl)-carbamic acid tert-butyl ester as a white solid, which was used without further purification.

Aufarbeitung

  1. concentrationThe mixture was concentrated
  2. customthe residue was partitioned between CH2Cl2 (50 mL) and 1.0 N NaOH (15 mL)
  3. customThe phases were separated
  4. extractionthe aqueous phase was extracted with CH2Cl2 (3×15 mL)
  5. dry with materialThe combined organic extracts were dried (Na2SO4)
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-918be09755cb4b6db075294f19becc5f
Quelldatensatz
uspto-grants-2007_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07291631B2

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