Sodium triacetoxyborohydride → 1-[1-(2-Chloro-4-morpholin-4-ylthieno[3,2-d]pyrimidin-6-ylmethyl)azetidin-3-yl]piperidin-4-ol

HRID 1922786Notes

Reaction equation

HRID 1922786 reaction equation
[Cl:1][C:2]1[N:3]=[C:4]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:5]2[S:10][C:9]([CH:11]=O)=[CH:8][C:6]=2[N:7]=1.[NH:19]1[CH2:22][CH:21]([N:23]2[CH2:28][CH2:27][CH:26]([OH:29])[CH2:25][CH2:24]2)[CH2:20]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[Cl:1][C:2]1[N:3]=[C:4]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:5]2[S:10][C:9]([CH2:11][N:19]3[CH2:22][CH:21]([N:23]4[CH2:28][CH2:27][CH:26]([OH:29])[CH2:25][CH2:24]4)[CH2:20]3)=[CH:8][C:6]=2[N:7]=1

Participants

5

Reactant 3

HCID 5049666Sodium triacetoxyborohydrideHCID 220613791-(Azetidin-3-YL)piperidin-4-OLHCID 457899852-Chloro-4-morpholinothieno[3,2-d]pyrimidine-6-carbaldehyde

Product 1

HCID 596061811-[1-(2-Chloro-4-morpholin-4-ylthieno[3,2-d]pyrimidin-6-ylmethyl)azetidin-3-yl]piperidin-4-olYield 75.2%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

A mixture of 2-chloro-4-morpholin-4-ylthieno[3,2-d]pyrimidine-6-carbaldehyde (136 mg, 0.48 mmol), 1-azetidin-3-ylpiperidin-4-ol (90 mg, 0.58 mmol) and 4 Å powdered molecular sieves (260 mg) in DCE (15 mL) was stirred for 5 h before the addition of sodium triacetoxyborohydride (202 mg, 0.96 mmol). The resulting mixture was stirred for 18 h then filtered through Celite® and the filtrate loaded onto an Isolute® SCX-2 cartridge which was washed with MeOH and the product eluted with 2M NH3/MeOH/DCM. The resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-10%) affording the title compound as a pale yellow oil (153 mg, 75%)._LCMS (method H): RT 1.88 min [M+H]+ 424.3

Workup

  1. filtrationthen filtered through Celite®
  2. washwas washed with MeOH
  3. washthe product eluted with 2M NH3/MeOH/DCM
  4. customThe resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-10%)

Sources & evidence

ORD record
ord-d31713cf9626480395e4d23fc3bc39e6
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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