Manufacture of levobupivacaine and analogues thereof from L-lysine

摘要

PCT No. PCT/GB95/02385 Sec. 371 Date Jun. 9, 1997 Sec. 102(e) Date Jun. 9, 1997 PCT Filed Oct. 9, 1995 PCT Pub. No. WO96/11181 PCT Pub. Date Apr. 18, 1996The subject invention concerns a compound of formula (X), which can be prepared from the starting material L-lysine, and converted to levobupivacaine by cyclization.