Acetic Acid → HCID 69316833, compound

HRID 1350139Notes

Reaction equation

[CH:1]([O:4][C:5]1[CH:14]=[C:13]([C:15]([F:18])([F:17])[F:16])[C:12]2[C:7](=[CH:8][CH:9]=[C:10]3[NH:22][C@H:21]([CH3:23])[CH2:20][O:19][C:11]3=2)[N:6]=1)([CH3:3])[CH3:2].[BH4-].[Na+].[C:26](O)(=O)[CH3:27]>>[CH2:26]([N:22]1[C:10]2[C:11](=[C:12]3[C:7](=[CH:8][CH:9]=2)[N:6]=[C:5]([O:4][CH:1]([CH3:3])[CH3:2])[CH:14]=[C:13]3[C:15]([F:18])([F:17])[F:16])[O:19][CH2:20][C@H:21]1[CH3:23])[CH3:27]

Participants

Reactant 3

HCID 176Acetic Acid

HCID 4311764Sodium borohydride

HCID 69316792HCID 69316792, compound

Product 1

HCID 69316833HCID 69316833, compoundYield 100%

Procedure

This compound was prepared according to General Method 6 (EXAMPLE 3) from (3R)-3,4-dihydro-8-isopropoxy-3-methyl-10-(trifluoromethyl)-2H-[1,4]oxazino[2,3-f]quinoline (16 mg, 0.049 mmol) and NaBH4 pellets (large excess, >10 equiv) in 5 mL acetic acid (0.01 M stirred at rt for 12 h, to afford 18 mg (100%) of (3R)-4-ethyl-3,4-dihydro-8-isopropoxy-3-methyl-10-(trifluoromethyl)-2H-[1,4]oxazino[2,3-f]quinoline. This material (18 mg, 0.050 mmol) was carried on according to General Method 4 (EXAMPLE 1) by treatment with 2.5 mL acetic acid and 2.5 mL concentrated HCl and heated at 90° C. for 4 h to afford 9 mg (57%) of Compound 103, after purification by column chromatography (3:1 hexanes: EtOAc to 1:1 hexanes:EtOAc, gradient elution). 1H NMR (500 MHz, CDCl3) δ 12.02 (bs, 1H), 7.12 (s, 1H), 7.04 (d, J=8.8, 1H), 6.97 (d, J=9.3, 1H), 4.10 (dd, J=10.2, 3.4, 1H), 4.02 (dd, J=10.3, 2.9, 1H), 3.53 (m, 1H), 3.43 (m, 1H), 3.32 (m, 1H), 1.22 (d, J=6.9, 3H), 1.18 (t, J=7.1, 3H).

Workup

customThis compound was prepared

Sources & evidence

ORD record: ord-ecc2b924440d445896e6aff68379858c
Source dataset: uspto-grants-2007_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07214690B2

Reaction notes

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