O-(Tetrahydropyran-2-yl)hydroxylamine → HCID 87208942, compound

HRID 518220Notes

Reaction equation

HRID 518220 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][N:10]2[CH2:15][CH2:14][C:13]3([CH2:24][C:23](=[O:25])[C:22]4[C:17](=[CH:18][CH:19]=[C:20](/[CH:26]=[CH:27]/[C:28](O)=[O:29])[CH:21]=4)[O:16]3)[CH2:12][CH2:11]2)=[CH:4][CH:3]=1.[NH2:31][O:32][CH:33]1[CH2:38][CH2:37][CH2:36][CH2:35][O:34]1>C(Cl)Cl>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][N:10]2[CH2:11][CH2:12][C:13]3([CH2:24][C:23](=[O:25])[C:22]4[C:17](=[CH:18][CH:19]=[C:20](/[CH:26]=[CH:27]/[C:28]([NH:31][O:32][CH:33]5[CH2:38][CH2:37][CH2:36][CH2:35][O:34]5)=[O:29])[CH:21]=4)[O:16]3)[CH2:14][CH2:15]2)=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 5142091O-(Tetrahydropyran-2-yl)hydroxylamineHCID 66932405HCID 66932405, compound

Product 1

HCID 87208942HCID 87208942, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(E)-3-{1′-[2-(4-Amino-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4′-piperidine]-6-yl}-acrylic acid (108 mg, 0.225 mmol) was suspended in DCM (5 ml). TEA (0.09 ml, 0.67 mmol) was added and the clear solution was treated with NH2OTHP following the procedure described in Example 1, Step B, giving (E)-3-{1′-[2-(4-amino-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4′-piperidine]-6-yl}-N-(tetrahydro-pyran-2-yloxy)-acrylamide (37 mg) as a yellow solid, which was then dissolved in DCM (3 ml) and treated with 4 M HCl in dioxane (0.1 ml, 0.4 mmol) as described in Example 55, Step D, giving a light yellow solid (28 mg, di-hydrochloride salt).

Sources & evidence

ORD record
ord-2d4235f1ab22464881257fab789f9815
Source dataset
uspto-grants-2015_08
Patent number
US09115148B2

Reaction notes

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