Dimethylamine → 4-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)-N,N,2,2-tetramethylbut-3-ynamide

Participants

Role	Name	HCID	Charge
Reactant	Dimethylamine	HCID 674	—
Reactant	Tetrahydrofuran	HCID 8028	—
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	4-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)-2,2-dimethylbut-3-ynoic acid	HCID 49870320	—
Solvent	Dichloromethane	HCID 6344	—
Product	4-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)-N,N,2,2-tetramethylbut-3-ynamide	HCID 49870321	19%

Reaction Steps

To a stirred solution of 4-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)-2,2-dimethylbut-3-ynoic acid (5.0 mg, 0.011 mmol) and i-Pr2NEt (0.01 mL) in CH2Cl2 (1 mL) were added 2 M Me2NH in THF (0.1 mL, 0.2 mmol) and solid HATU (8.5 mg, 0.022 mmol). The mixture was stirred overnight at rt, concentrated and the residue purified by prep HPLC to afford 4-(4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)-N,N,2,2-tetramethylbut-3-ynamide (1.0 mg, 19%). LC-MS Method 1 tR=1.65 min, m/z=491, 433; 1H NMR (CDCl3) 1.13 (s, 3H), 1.18 (s, 3H), 1.52 (d, 3H), 1.55 (s, 6H), 2.10-2.40 (5H), 2.82 (m, 1H), 5.64 (q, 1H), 6.88 (d, 2H), 7.13 (d, 2H), 7.30-7.40 (5H)

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08883778B2
Source dataset	uspto-grants-2014_11
ORD ID	ord-5ef0046bdc174ca7804078ec974b2672
Source note	uspto-grants-2014_11