D-Lactic Acid → (R)-2-hydroxy-1-(4-(3-(6-phenylpyridin-3-yl)-8H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidin-5-yloxy)piperidin-1-yl)propan-1-one

HRID 1913259Notes

Reaction equation

HRID 1913259 reaction equation
[C:1]1([C:7]2[N:12]=[CH:11][C:10]([C:13]3[CH:14]=[N:15][N:16]4[C:21]5[NH:22][CH:23]=[CH:24][C:20]=5[C:19]([O:25][CH:26]5[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]5)=[N:18][C:17]=34)=[CH:9][CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:32](O)(=[O:36])[C@@H:33]([CH3:35])[OH:34].C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C>CN(C=O)C.C(Cl)CCl>[OH:34][C@H:33]([CH3:35])[C:32]([N:29]1[CH2:30][CH2:31][CH:26]([O:25][C:19]2[C:20]3[CH:24]=[CH:23][NH:22][C:21]=3[N:16]3[N:15]=[CH:14][C:13]([C:10]4[CH:11]=[N:12][C:7]([C:1]5[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=5)=[CH:8][CH:9]=4)=[C:17]3[N:18]=2)[CH2:27][CH2:28]1)=[O:36]

Participants

7

Reactant 4

HCID 61503D-Lactic AcidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 1363324193-(6-phenylpyridin-3-yl)-5-(piperidin-4-yloxy)-8H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidine

Product 1

HCID 135998754(R)-2-hydroxy-1-(4-(3-(6-phenylpyridin-3-yl)-8H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidin-5-yloxy)piperidin-1-yl)propan-1-one

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 3-(6-phenylpyridin-3-yl)-5-(piperidin-4-yloxy)-8H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidine (Int-11e, 95.8 mg, 0.23 mmoL), D-(−)-lactic acid (25 mg, 0.28 mmoL), EDC (89 mg, 0.47 mmoL), HOBt (63 mg, 0.47 mmoL) and DIEA (244 uL, 1.46 mmoL) in DMF (4 mL) were stirred at room temperature for 2 hr. Purification with prep-LC provided (R)-2-hydroxy-1-(4-(3-(6-phenylpyridin-3-yl)-8H-pyrazolo[1,5-a]pyrrolo[3,2-e]pyrimidin-5-yloxy)piperidin-1-yl)propan-1-one (35): LCMS tR=3.48 Min (10 min run, UV254nm). Mass calculated for, M+482.2, observed m/z 483.2 (M+H).

Workup

  1. customPurification

Sources & evidence

ORD record
ord-5cdd4753711045259540a738d8032c79
Source dataset
uspto-grants-2013_12
Patent number
US08609675B2

Reaction notes

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