申请人:Merck & Co., Inc.
公开号:US04032521A1
公开(公告)日:1977-06-28
Novel antibiotics of the formula: ##STR1## and its salts, esters and amides wherein R is acyl; B is H, OCH.sub.3, CH.sub.3 or SR" wherein R" is lower alkyl; A is hydrogen, hydroxy, or an organic group; and, Y is a radical of the formula PO(OH).sub.2 ; PO(OH) (OR") wherein R" is loweralkyl; SO.sub.2 (OH); or SO.sub.2 NH.sub.2. The products are prepared by a multi-step process starting with an .alpha.-aminophosphonoacetate and terminating in the acylation of the 7-amino compound, and, if desired, removing the ester blocking group. The products are useful antibiotics.
该公式的新型抗生素及其盐、酯和酰胺,其中R为酰基;B为H、OCH.sub.3、CH.sub.3或SR",其中R"为较低的烷基;A为氢、羟基或有机基团;Y为公式PO(OH).sub.2的基团;PO(OH)(OR"),其中R"为较低的烷基;SO.sub.2(OH);或SO.sub.2NH.sub.2。这些产品通过一个多步过程制备,从α-氨基磷酸乙酸酯开始,最后在7-氨基化合物中酰化,如果需要,去除酯阻断基团。这些产品是有用的抗生素。