Cefdinir preparation by synthesis of new key intermediates, isolable as variously solvated species complexed with thiophosphoric acid derivatives or with phosphoric acid derivatives.
CEFDINIR ACID DOUBLE SALT AND METHOD FOR PRODUCING THE SAME
申请人:QI Youmao
公开号:US20110257388A1
公开(公告)日:2011-10-20
A compound represented by Formula I, wherein M represents Na
+
, K
+
, NH4
+
, or Cs
+
; and 1) when Y represents SO
4
2−
: when m=1, then n=1; and when m=0.5, then n=1.5; and 2) when Y represents PO
4
2−
, when m=1, then n=2. The compound has good solubility and high bioavailability and can be formulated into oral pharmaceutical preparations and pharmaceutical preparations for injections.