HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Methyl 3-oxovalerate → 2-[(4-{2-[Heptyl(3-oxopentanoyl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl ester

HRID 914377
Notes
Print preview

Reaction equation

HRID 914377 reaction equation
[C:1]([O:5][C:6](=[O:26])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][NH:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[N:15]=1)([CH3:9])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[CH3:27][CH2:28][C:29]([CH2:31][C:32](OC)=[O:33])=[O:30]>C1(C)C(C)=CC=CC=1>[C:1]([O:5][C:6](=[O:26])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][N:18]([CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[C:32](=[O:33])[CH2:31][C:29](=[O:30])[CH2:28][CH3:27])[N:15]=1)([CH3:9])[CH3:8])([CH3:4])([CH3:3])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 121699Methyl 3-oxovalerateHCID 597593122-({4-[2-(Heptylamino)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid tert-butyl ester

Product 1

HCID 873855042-[(4-{2-[Heptyl(3-oxopentanoyl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl esterYield 42.8%

Reagents, catalysts & solvents 1

HCID 7237O-XyleneSolvent

Conditions

Temperature
135 °C

Procedure

2-({4-[2-(Heptylamino)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid tert-butyl ester (3.0 g) synthesized in Example 303-2 and 3-keto-n-valeric acid methyl ester (1.46 g) were dissolved in xylene (10 mL), and the mixture was stirred at 135° C. for 8 hr. After cooling to room temperature, the solution was directly packed and purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1) to give 2-[(4-{2-[heptyl(3-oxopentanoyl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl ester (1.6 g) as a colorless oil. The present compound was used in the next step without particular purification. The title compound was obtained by an operation similar to that of Example 446 for the steps after cyclization reaction using hydrazine monohydrate.

Workup

  1. temperatureAfter cooling to room temperature
  2. custompurified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1)

Sources & evidence

ORD record
ord-b008a288b2a44333b2dc38af9db85b60
Source dataset
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08026370B2

Reaction notes

Loading…

On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes