Sodium Bicarbonate → (S)-4-(4-(2-(5-fluoro-1H-indol-1-yl)acetyl)-3-methylpiperazin-1-yl)-N-(thiazol-2-yl)benzenesulfonamide

https://huagongshe.com/reaction/2043126

Participants

Role	Name	HCID	Charge
Reactant	Sodium Bicarbonate	HCID 516892	—
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	1,2,4-Thiadiazol-5-amine--hydrogen chloride (1/1)	HCID 22014543	—
Reactant	(5-Fluoro-1H-indol-1-yl)acetic acid	HCID 45036900	—
Reactant	HCID 59466427	HCID 59466427	—
Product	(S)-4-(4-(2-(5-fluoro-1H-indol-1-yl)acetyl)-3-methylpiperazin-1-yl)-N-(thiazol-2-yl)benzenesulfonamide	HCID 53627607	53%

Reaction Steps

Synthesized according to general procedure 9, method B. The reaction was set up with (S)-4-(3-methylpiperazin-1-yl)-N-(thiazol-2-yl)benzenesulfonamide (250 mg, 0.74 mmol), 2-(5-fluoro-1H-indol-1-yl)acetic acid (143 mg, 0.74 mmol), HATU reagent (281 mg, 0.74 mmol), sodium bicarbonate (93 mg, 1.11 mmol), and DMF/CH2Cl2-1/1 (4.0 mL) to obtain the desired amide as a white solid (200 mg, 0.39 mmol, 53% yield). 1H NMR (400 MHz, DMSO-d6) 6 (mixture of rotamers) 7.63-7.59 (m, 2H), 7.35 (s, 1H), 7.30 (dd, J=2.5, 9.9 Hz, 2H), 7.21 (d, J=4.6 Hz, 1H), 7.00 (s, 1H), 6.95 (td, J=9.2, 3.9 Hz, 2H), 6.76 (d, J=4.5 Hz, 1H), 6.43 (d, J=3.0 Hz, 1H), 5.41-5.04 (m, 2H), 4.52 (s, ½H), 4.38 (s, ½H), 4.21-4.05 (m, ½H), 3.93-3.82 (m, ½H), 3.81-3.48 (m, 3H), 1.33 (s, 1.5; H), 1.14 (s, 1.5H). LC/MS (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA), m/z: M+1 obs=514.5; tR=3.07 min.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08586589B2
Source dataset	uspto-grants-2013_11
ORD ID	ord-49914c75c46647f99160ebfbe56c1a4e
Source note	uspto-grants-2013_11