Dichloromethane → HCID 131731849, compound

Participants

Role	Name	HCID	Charge
Reactant	Dichloromethane	HCID 6344	—
Reactant	Diethylamine	HCID 8021	—
Reactant	N-[(9H-fluoren-9-ylmethoxy)carbonyl]-2-methylalanyl-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-3-{[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino}-2-methyl-3-thioxopropyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide	HCID 89573045	—
Product	HCID 131731849	HCID 131731849	70%

Reaction Steps

According to general procedure A, from #43 (176 mg, 0.184 mmol, 1 eq.), dichloromethane (4 mL, 0.05 M) and diethylamine (4 mL) was synthesized the crude desired material, which was purified by reverse phase chromatography (Method C). The resulting trifluoroacetic acid salt was dissolved in methanol, treated with a 4 M solution of hydrochloric acid in dioxane, and concentrated in vacuo to give #45 (100 mg, 70%) as a white solid. LC-MS: m/z 734.6 [M+H+], retention time=0.72 minutes; 1H NMR (400 MHz, CD3OD), presumed to be a mixture of rotamers, characteristic signals: δ 7.18-7.31 (m, 5H), 5.41-5.47 and 5.55-5.62 (2 m, total 1H), 3.73 and 3.76 (2 s, total 3H), 3.35 and 3.36 (2 s, total 3H), 3.10 and 3.15 (2 br s, total 3H), 1.62 and 1.64 (2 s, total 3H), 1.53 and 1.55 (2 s, total 3H), [1.25 (d, J=6.6 Hz) and 1.29 (d, J=6.5 Hz), total 3H], 0.84-0.91 (m, 3H).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08828401B2
Source dataset	uspto-grants-2014_09
ORD ID	ord-0be0d8bc949644579e4061688245c590
Source note	uspto-grants-2014_09