Methanol → HCID 20084354, compound

HRID 327549

Reaction equation

HRID 327549 reaction equation
C[O:2][C:3](=[O:31])[C:4]1[CH:9]=[CH:8][C:7]([CH2:10][C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16](/[CH:20]=[CH:21]/[C:22]3[S:23][CH:24]=[C:25]([CH:27]4[CH2:30][CH2:29][CH2:28]4)[N:26]=3)[CH:15]=2)=[O:12])=[CH:6][CH:5]=1.O1CCCCC1.CO.O.[OH-].[Li+]>O>[CH:27]1([C:25]2[N:26]=[C:22](/[CH:21]=[CH:20]/[C:16]3[CH:15]=[C:14]([NH:13][C:11](=[O:12])[CH2:10][C:7]4[CH:6]=[CH:5][C:4]([C:3]([OH:31])=[O:2])=[CH:9][CH:8]=4)[CH:19]=[CH:18][CH:17]=3)[S:23][CH:24]=2)[CH2:28][CH2:29][CH2:30]1

Participants

6

Reactant 4

HCID 887MethanolHCID 8894TetrahydropyranHCID 168937Lithium hydroxide, monohydrateHCID 67807759(E)-4-[2-[3-[2-[4-(cyclobutyl)-2-thiazolyl]ethenyl]phenylamino]-2-oxoethyl]benzoic acid methyl ester

Product 1

HCID 20084354HCID 20084354, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A solution composed of 0.5 g of (E)-4-[2-[3-[2-[4-(cyclobutyl)-2-thiazolyl]ethenyl]phenylamino]-2-oxoethyl]benzoic acid methyl ester, 20 ml of tetrahydropyran, 3 ml of methanol, 3 ml of water and 0.35 g of lithium hydroxide monohydrate was allowed to stand at room temperature for 20 hr. The solvents were removed by rotary evaporation and the residual materials were taken up in 30 ml of water. Addition of an excess of acetic acid caused the precipitation of 0.5 g of (E)-4-[2-[3-[2-[4-(cyclobutyl)-2-thiazolyl]ethenyl]phenylamino]-2-oxoethyl]benzoic acid; m.p. 262°-263° C. after recrystallization from 2-propanol.

Workup

  1. customThe solvents were removed by rotary evaporation
  2. additionAddition of an excess of acetic acid
  3. customthe precipitation of 0.5 g of (E)-4-[2-[3-[2-[4-(cyclobutyl)-2-thiazolyl]ethenyl]phenylamino]-2-oxoethyl]benzoic acid
  4. customm.p. 262°-263° C. after recrystallization from 2-propanol

Sources & evidence

ORD record
ord-5fbdb485c84948f7bf3d33663ab2c1fd
Source dataset
uspto-grants-1993_12
Patent number
US05273986

Linked notes

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