granting motion to dismiss and denying jurisdiction- al discovery where complaint was de- scribed as “sparse” and “conclusory”)); see also Cornell v. Assicurazioni Generali S.p.A., Consolidated, Nos. 97 Civ. 2262, 98 Civ. 9186(MBM), 2000 WL 284222, at *2 (S.D.N.Y. Mar. 16, 2000) (granting motion to dismiss and denying req