Synthesis of 1,2,5,6-Tetrahydro-3-pyridinylalanine: A Key Intermediate in the Preparation of Thrombin Inhibitor UK-239,326
摘要:
A short synthesis of N-protected 1,2,5,6-tetrahydro-3-pyridinylalanine derivatives (8-10) was accomplished using a simple procedure of quaternization of (3-pyridyl)alanine 6 with benzyl bromide followed by reduction with NaBH(4). Amino acid 10 was then converted to thrombin inhibitor UK-239,326 (2), which required the sequential functionalization of four amines to give four different functional groups (viz., sulfonamide, carboxamide, guanidine, and methylamine).
Synthesis of 1,2,5,6-Tetrahydro-3-pyridinylalanine: A Key Intermediate in the Preparation of Thrombin Inhibitor UK-239,326
摘要:
A short synthesis of N-protected 1,2,5,6-tetrahydro-3-pyridinylalanine derivatives (8-10) was accomplished using a simple procedure of quaternization of (3-pyridyl)alanine 6 with benzyl bromide followed by reduction with NaBH(4). Amino acid 10 was then converted to thrombin inhibitor UK-239,326 (2), which required the sequential functionalization of four amines to give four different functional groups (viz., sulfonamide, carboxamide, guanidine, and methylamine).
申请人:Pfizer Research and
Development Company, N.V./S.A.
公开号:EP0822934B1
公开(公告)日:2000-02-09
US5798352A
申请人:——
公开号:US5798352A
公开(公告)日:1998-08-25
Synthesis of 1,2,5,6-Tetrahydro-3-pyridinylalanine: A Key Intermediate in the Preparation of Thrombin Inhibitor UK-239,326
作者:Paul V. Fish、Alan D. Brown、John C. Danilewicz、David Ellis、J. David Hardstone、Keith James
DOI:10.1080/00397910701839210
日期:2008.8.19
A short synthesis of N-protected 1,2,5,6-tetrahydro-3-pyridinylalanine derivatives (8-10) was accomplished using a simple procedure of quaternization of (3-pyridyl)alanine 6 with benzyl bromide followed by reduction with NaBH(4). Amino acid 10 was then converted to thrombin inhibitor UK-239,326 (2), which required the sequential functionalization of four amines to give four different functional groups (viz., sulfonamide, carboxamide, guanidine, and methylamine).