Shigenobu, Y., Shinohara, Y., Mogami, K., Yokoyama, M., Tanase, T., Sakakibara, T., Nishida, F., Mochida, K., Kinoshita, I., Doe, M., Ichihara, K., Naruta, Y., Mehrkhodavandi, P., Buglyó, P., Song, B., Orvig, C., Mikata, Y.: General synthesis of useful chelating reagents having a sugar unit, 1,3-diamino-2-propyl gb s-D-glucopyranoside and 1,3-diamino-2-propyl alpha-D-mannopyranoside.