Methanol → HCID 15617483, compound

HRID 620548Notes

Reaction equation

HRID 620548 reaction equation
C(N(CC)CC)C.[SH:8][CH2:9][CH2:10][C:11]([O:13][CH3:14])=[O:12].C(CCS[CH:22]([CH:27]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)O)[C:23]([O:25][CH3:26])=[O:24])(OC)=O.C[OH:50]>>[C:11]([CH2:10][CH2:9][S:8][CH:27]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][C:43]1[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=1)[CH:22]([OH:50])[C:23]([O:25][CH3:26])=[O:24])([O:13][CH3:14])=[O:12]

Participants

5

Reactant 4

HCID 887Methanol2×HCID 8471Triethylamine2×HCID 18050Methyl 3-mercaptopropionateHCID 19023803HCID 19023803, compound

Product 1

HCID 15617483HCID 15617483, compound

Procedure

The compound of Example 35(a) (1.2 g, 3.28 mmoles) was dissolved in methanol (20 ml) containing 2% triethylamine and stirred under argon at room temperature. Methyl 3-mercaptopropionate (0.623 ml, 5.45 mmoles) and triethylamine (1.45 ml, 9.84 mmoles) were dissolved in methanol (15 ml) and added dropwise. The mixture was stirred for 18 hours. The solvent was stripped and the residue eluted with 20% ethyl acetate/hexane to give a mixture of the desired product and its regioisomer, methyl 2-(2-carbomethoxyethylthio)-3-[2-(8-phenyloctyl)phenyl]-3-hydroxypropionate. The mixture was rechromatographed on 100 grams of neutral alumina to separate the desired product.

Workup

  1. additionadded dropwise
  2. stirringThe mixture was stirred for 18 hours
  3. washthe residue eluted with 20% ethyl acetate/hexane
  4. customto give

Sources & evidence

ORD record
ord-fe61212761a44ab093b6c307adbc4c34
Source dataset
uspto-grants-1989_04
Patent number
US04820719

Reaction notes

Loading…