( ( ( ( ( At present ) ( there ( are ( ( several ( carbohydrate-based compounds ) ) ( marketed ( with ( ( important ( pharmaceutical application ) ) ( -LRB- ( 6 -RRB- ) ) ) ) ) ) ) ) ) and ) ( ( many ( of ( these compounds ) ) ) ( can ( be ( classified ( as ( ( ( ( monosaccharides or ) simple ) disaccharides ) ( -LRB- ( ( Figure 1 ) -RRB- ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (PP (IN At) (ADJP (JJ present))) (NP (EX there)) (VP (VBP are) (NP (NP (JJ several) (JJ carbohydrate-based) (NNS compounds)) (VP (VBN marketed) (PP (IN with) (NP (NP (JJ important) (JJ pharmaceutical) (NN application)) (PRN (-LRB- -LRB-) (NP (CD 6)) (-RRB- -RRB-)))))))) (CC and) (S (NP (NP (JJ many)) (PP (IN of) (NP (DT these) (NNS compounds)))) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN as) (NP (NP (ADJP (JJ monosaccharides) (CC or) (JJ simple)) (NNS disaccharides)) (PRN (-LRB- -LRB-) (NP (NN Figure) (CD 1)) (-RRB- -RRB-)))))))) (. .)))
At present there are several carbohydrate-based compounds marketed with important pharmaceutical application (6) and many of these compounds can be classified as monosaccharides or simple disaccharides (Figure 1).
(ROOT (S (NP (NN Simple) (NNS carbohydrates)) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NN chain) (NN length)))))))) (. .)))