Formaldehyde → HCID 21094355, compound

HRID 1350154Notes

Reaction equation

HRID 1350154 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]([CH:23]([CH3:25])[CH3:24])[CH2:20][O:19][C:11]3=2)[N:6]=1)([CH3:3])[CH3:2].C=O.[BH3-][C:29]#N.[Na+]>CC(O)=O>[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[N:22]([CH3:29])[C@H:21]([CH:23]([CH3:25])[CH3:24])[CH2:20][O:19][C:11]3=2)[N:6]=1)([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5003444Sodium cyanoborohydrideHCID 69318169HCID 69318169, compound

Product 1

HCID 21094355HCID 21094355, compoundYield 90%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

Compound 121 was prepared according to General Method 5 (EXAMPLE 2) from (3R)-3,4-dihydro-8-isopropoxy-3-isopropyl-10-(trifluoromethyl)-2H-[1,4]oxazino[2,3-f]quinoline (0.010 g, 0.028 mmol) with paraformaldehyde (0.008 g, 0.280 mmol) and NaCNBH3 (0.009 g, 0.140 mmol) in AcOH (1 mL) to afford 0.009 g (90%) of (3R)-3,4-dihydro-8-isopropoxy-3-isopropyl-4-methyl-10-(trifluoromethyl)-2H-[1,4]oxazino[2,3-f]quinoline, a yellow oil. This material (0.009 g, 0.025 mmol) was carried on according to General Method 4 (EXAMPLE 1) by treatment with conc. HCl (0.5 mL) and AcOH (1 mL) to afford 0.006 g (86%) of Compound 121 as a yellow solid. Rf 0.6 (9:1 CH2Cl2;MeOH); 1H NMR (400 MHz, CDCl3) δ 12.49 (broad s, 1H), 7.13 (s, 1H), 7.06 (d, 1H, J=8.9), 7.02 (d, 1H, J=8.9), 4.43 (dd, ABX, 1H, J=10.9, 1.8), 3.86 (dd, ABX, 1H, J=10.9, 2.9), 3.03 (s, 3H), 2.93–2.88 (m, 1H), 2.02–1.91 (m, 1H), 0.99 (d, 3H, J=6.9), 0.95 (d, 3H, J=6.9).

Sources & evidence

ORD record
ord-12cf69b9e70e47ed941ff626b9c49c45
Source dataset
uspto-grants-2007_05
Patent number
US07214690B2

Reaction notes

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