JOHNSON PETER LEE,JOHNSON PETER LEE,RENGA JAMES M.,RENGA JAMES M.,GIAMPIETRO NATALIE C.,GIAMPIETRO NATALIE C.,WHITEKER GREGORY T.,WHITEKER GREGORY T.,GALLIFORD CHRISTOPHER,GALLIFORD CHRISTOPHER
申请号:
PL13861884
公开号:
PL2931044T3
申请日:
2013.12.12
申请国别(地区):
PL
年份:
2017
代理人:
摘要:
4-Amino-3-chloro-6-(substituted)picolinates are prepared from difluoroacetic acid or trifluoroacetic acid, tritylamine or t-butylamine as a protecting group, a 3,3-dialkoxyprop-1-yne and a substituted methylene amine by a series of steps.