HRID2173458

反应详情

EQUATION

反应方程式

HRID 2173458 的结构方程式

PROCEDURE

实验过程

(3R)-3-methyl-6-[2-(4-{[6-(1H-tetrazol-1-yl)pyridin-3-yl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one and (3S)-3-methyl-6-[2-(4-{[6-(1H-tetrazol-1-yl)pyridin-3-yl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one 3-Methyl-6-[2-(4-{[6-(1H-tetrazol-1-yl)pyridin-3-yl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one was synthesized according to the procedure described for 3-methyl-6-[2-(3-methyl-4-{[4-(1H-tetrazol-1-yl)phenyl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one, utilizing [6-(1H-tetrazol-1-yl)pyridin-3-yl]acetic acid and 3-methyl-6-[2-(piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one hydrochloride. LC-MS (IE, m/z): 462 [M+1]+. Separation of the two enantiomers was achieved by chiral preparative HPLC using a Chiralcel OD column eluting with 75% EtOH/Heptane to afford (3R)-3-methyl-6-[2-(4-{[6-(1H-tetrazol-1-yl)pyridin-3-yl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one and (3S)-3-methyl-6-[2-(4-{[6-(1H-tetrazol-1-yl)pyridin-3-yl]acetyl}piperazin-1-yl)ethyl]-3,4-dihydro-1H-isochromen-1-one both having LC-MS (IE, m/z): 462 [M+1]+.

WORKUP

后处理

  1. customSeparation of the two enantiomers
  2. washeluting with 75% EtOH/Heptane