Diisopropylethylamine → tert-Butyl 6-((3R,4R)-3-(tert-butoxycarbonylamino)tetrahydro-2H-pyran-4-ylamino)-4-chloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate

HRID 516128

Reaction equation

HRID 516128 reaction equation
[Cl:1][C:2]1[C:7]2[C:8](=[O:18])[N:9]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:10][C:6]=2[C:5]([F:19])=[C:4](Cl)[N:3]=1.[NH2:21][C@@H:22]1[CH2:27][CH2:26][O:25][CH2:24][C@@H:23]1[NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32].C(N(C(C)C)CC)(C)C>CS(C)=O.CC(O)C>[C:31]([O:30][C:29]([NH:28][C@@H:23]1[C@H:22]([NH:21][C:4]2[N:3]=[C:2]([Cl:1])[C:7]3[C:8](=[O:18])[N:9]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:10][C:6]=3[C:5]=2[F:19])[CH2:27][CH2:26][O:25][CH2:24]1)=[O:35])([CH3:34])([CH3:32])[CH3:33]

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 68077633tert-Butyl ((3R,4R)-4-aminotetrahydro-2H-pyran-3-yl)carbamateHCID 86654739tert-Butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate

Product 1

HCID 86654748tert-Butyl 6-((3R,4R)-3-(tert-butoxycarbonylamino)tetrahydro-2H-pyran-4-ylamino)-4-chloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylateYield 26.4%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 3776IsopropanolSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of tert-butyl 4,6-dichloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (1.24 g, 3.85 mmol), tert-butyl (3R,4R)-4-aminotetrahydro-2H-pyran-3-ylcarbamate (1.00 g, 4.62 mmol), diisopropylethylamine (3.36 mL, 19.27 mmol) in DMSO (10 mL) and 2-propanol (40 mL) were heated to 100° C. in an oil bath for 20 h. The reaction was repeated on the same scale and both reaction solutions were combined and concentrated. The mixture was purified via silica gel flash chromatography eluting with EtOAc and hexanes (10-50% EtOAc gradient) to give the title compound as a pale pinkish-white solid (510 mg, 13%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.36 (s, 9 H), 1.50 (s, 3 H), 1.59-1.61 (m, 1 H), 1.97-1.99 (m, 1 H), 1.97-1.99 (m, 1 H), 3.46-3.49 (m, 2 H), 3.80-3.83 (m, 3 H), 4.31-4.33 (m, 1 H), 4.73 (s, 1 H), 6.59 (d, J=7.30 Hz, 1 H), 7.43 (d, J=7.30 Hz, 1 H). [M+H] calc'd for C22H30ClFN4O6, 501; found, 501.

Workup

  1. concentrationconcentrated
  2. customThe mixture was purified via silica gel flash chromatography
  3. washeluting with EtOAc and hexanes (10-50% EtOAc gradient)

Sources & evidence

ORD record
ord-622700303fa94f2582c1265bc6c9def1
Source dataset
uspto-grants-2015_08
Patent number
US09108970B2

Linked notes

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