Isonicotinic Acid → (3RS,4RS)-4-(1-tert-butoxycarbonyl-3-naphthalen-2-ylmethoxy-piperidin-4-yl)-benzyl pyridine-4-carboxylate

HRID 1004990Notes

Reaction equation

HRID 1004990 reaction equation
[OH:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH:10]2[O:22][CH2:23][C:24]2[CH:33]=[CH:32][C:31]3[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=3)[CH:25]=2)=[CH:5][CH:4]=1.[C:34](O)(=[O:41])[C:35]1[CH:40]=[CH:39][N:38]=[CH:37][CH:36]=1.C(N(C(C)C)C(C)C)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>C(#N)C>[N:38]1[CH:39]=[CH:40][C:35]([C:34]([O:1][CH2:2][C:3]2[CH:8]=[CH:7][C:6]([CH:9]3[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:19])[CH3:20])=[O:16])[CH2:11][CH:10]3[O:22][CH2:23][C:24]3[CH:33]=[CH:32][C:31]4[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=4)[CH:25]=3)=[CH:5][CH:4]=2)=[O:41])=[CH:36][CH:37]=1

Participants

6

Reactant 4

HCID 5922Isonicotinic AcidHCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 53699338tert-butyl (3RS,4RS)-4-(4-hydroxymethyl-phenyl)-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate

Product 1

HCID 22128497(3RS,4RS)-4-(1-tert-butoxycarbonyl-3-naphthalen-2-ylmethoxy-piperidin-4-yl)-benzyl pyridine-4-carboxylateYield 21%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A solution of 60 mg (0.13 mmol) of tert-butyl (3RS,4RS)-4-(4-hydroxymethyl-phenyl)-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate, 16 mg (0.13 mmol) of isonicotinic acid, 34 mg (0.26 mmol) of ethyldiisopropylamine and 58 mg (0.13 mmol) of benzotriazol-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate (BOP) in 5 ml of acetonitrile was stirred at room temperature for 2 hours. Subsequently, the reaction mixture was evaporated under reduced pressure and the residue, without further working-up, was chromatographed on silica gel using a 3:1 mixture of hexane and ethyl acetate as the eluent. There were obtained 15 mg (21% of theory) of (3RS,4RS)-4-(1-tert-butoxycarbonyl-3-naphthalen-2-ylmethoxy-piperidin-4-yl)-benzyl pyridine-4-carboxylate as a colourless solid; MS: 552 (M)+.

Workup

  1. customSubsequently, the reaction mixture was evaporated under reduced pressure
  2. customwas chromatographed on silica gel using
  3. additiona 3:1 mixture of hexane and ethyl acetate as the eluent

Sources & evidence

ORD record
ord-63b0f04c7cde4f1f89902359169c702c
Source dataset
uspto-grants-2000_04
Patent number
US06051712

Reaction notes

Loading…