3-Methoxypropylamine → [5-({[3-(Methyloxy)propyl]amino}methyl)-2-thienyl]boronic acid

HRID 562184Notes

Reaction equation

HRID 562184 reaction equation
C(C(CC)CNCC1SC(C2C=C3C(=C(C(N)=O)C=2)NC=C3C2CCN(S(CC)(=O)=O)CC2)=CC=1)C.[CH:37]([C:39]1[S:43][C:42]([B:44]([OH:46])[OH:45])=[CH:41][CH:40]=1)=O.[CH3:47][O:48][CH2:49][CH2:50][CH2:51][NH2:52].[BH3-]C#N.[Na+]>>[CH3:47][O:48][CH2:49][CH2:50][CH2:51][NH:52][CH2:37][C:39]1[S:43][C:42]([B:44]([OH:46])[OH:45])=[CH:41][CH:40]=1

Participants

5

Reactant 4

HCID 16723-MethoxypropylamineHCID 27734305-Formyl-2-thiopheneboronic acidHCID 5003444Sodium cyanoborohydrideHCID 577326215-(5-{[(2-ethylbutyl)amino]methyl}-2-thienyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide

Product 1

HCID 66722906[5-({[3-(Methyloxy)propyl]amino}methyl)-2-thienyl]boronic acidYield 40.9%

Procedure

Following the general procedure of 5-(5-{[(2-ethylbutyl)amino]methyl}-2-thienyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide, (5-formyl-2-thienyl)boronic acid (50 mg, 0.32 mmol), [3-(methyloxy)propyl]amine (29 mg, 0.32 mmol), and NaCNBH3 (40 mg, 0.64 mmol) were reacted to give 30 mg of crude [5-({[3-(methyloxy)propyl]amino}methyl)-2-thienyl]boronic acid. The crude [5-({[3-(methyloxy)propyl]amino}methyl)-2-thienyl]boronic acid was then reacted with 5-bromo-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide (65 mg, 0.157 mmol), K2CO3 (130 mg, 0.942 mmol), and tetrakis(triphenylphosphine)palladium(0) (9 mg, 0.0079 mmol). The crude product was purified once on an Agilent MDAP using the procedure shown in preparation of 5-(5-{[(2-ethylbutyl)amino]methyl}-2-thienyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide to give 7.6 mg of the title compound (9%).

Workup

  1. customwere reacted

Sources & evidence

ORD record
ord-e45433e043cd4222bb0e3804f4098865
Source dataset
uspto-grants-2011_11
Patent number
US08063071B2

Reaction notes

Loading…