申请人:——
公开号:US20030032834A1
公开(公告)日:2003-02-13
A compound of the formula [Ig]; wherein R
1
is hydrogen or an amino protective group, R
2
is hydrogen or hydroxy, and R
3
and R
4
are independently N-methyl-methoxycarbonylamino, N-ethyl-methoxycarbonylamino, N-propyl-methoxycarbonylamino or 3-ethylureid, or R
3
and R
4
are both methoxycarbonylamino substituted at a meta position of the benzene rings, or a salt thereof, and (2S)-1-phenoxy-3-[3,3-bis[4-methoxycarbonylamino)-phenyl]propylamino]-2-propanol sulfate (2:1) and some crystal forms thereof as &bgr;
3
adrenergic receptor agonists.
1
化合物的公式为[Ig],其中R1为氢或氨基保护基,R2为氢或羟基,R3和R4独立地为N-甲基甲氧羰基氨基、N-乙基甲氧羰基氨基、N-丙基甲氧羰基氨基或3-乙基脲,或者R3和R4都是苯环上的一个间位被甲氧羰基氨基取代的甲氧羰基氨基,或其盐,以及(2S)-1-苯氧基-3-[3,3-双(4-甲氧羰基氨基)苯基]丙基氨基-2-丙醇硫酸盐(2:1)和其某些晶体形式作为β3肾上腺素能受体激动剂。