반응 #161987

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#179

tert-butyl (2R)-2-{[(2S)-1-{[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[2-(cyclohepta-2,4,6-trien-1-yl)ethyl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl](methyl)amino}-3-methyl-1-oxobutan-2-yl]carbamoyl}-2-methylpiperidine-1-carboxylate

hydrochloric acid

→

#180

수율 83.0%

(2R)—N-[(2S)-1-{[(3R,4S,5S)-1-{(2S)-2-[(1R,2R)-3-{[2-(cyc lohepta-2,4,6-trien-1-yl)ethyl]amino}-1-methoxy-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-3-methoxy-5-methyl-1-oxoheptan-4-yl](methyl)amino}-3-methyl-1-oxobutan-2-yl]-2-methylpiperidine-2-carboxamide, hydrochloride salt

수율 83.0%

용매

dioxane

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후처리

1. 1
   기타A portion of this gum (25 mg) was azeotroped with a 1/1 mixture of methanol/acetonitrile

실험 절차

According to the general procedure C, from #179 (162 mg, 0.199 mmol, 1 eq.) and 4M solution of hydrochloric acid in dioxane (2.0 mL) was synthesized the desired material as a gum (155 mg). A portion of this gum (25 mg) was azeotroped with a 1/1 mixture of methanol/acetonitrile to afford #180 (20 mg, 83%) as a solid. 1H NMR (400 MHz, DMSO-d6), δ 9.02-9.13 (m), 8.83-8.93 (m), 8.39-8.46 (m), 8.00-8.06 (m), 7.78 (t), 7.24-7.30 (m), 7.16-7.21 (m), 6.54-6.65 (m), 6.09-6.19 (m), 5.11-5.18 (m), 4.69-4.78 (m), 4.59-4.68 (m), 4.46-4.56 (m), 4.08-4.13 (m), 3.95-4.03 (m), 3.77-3.85 (m), 3.54-3.73 (m), 3.43-3.53 (m), 3.37-3.42 (m), 3.24-3.33 (m), 3.16-3.22 (m), 3.03-3.15 (m), 2.99-3.02 (m), 2.89-2.98 (m), 2.65-2.76 (m), 2.41-2.54 (m), 2.15-2.39 (m), 2.07-2.15 (m), 1.51-1.94 (m), 1.49 (d), 1.38 (t), 1.20-1.32 (m), 1.02-1.09 (m), 0.84-0.97 (m), 0.73-0.81 (m). LC-MS (Protocol Q1): m/z 714.6 [M+H+], retention time=0.76 HPLC (Protocol U): m/z 714.4 [M+H+], retention time=7.409 minutes (purity=90%).

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